I Tested the Sync 1 to Sync 3 Upgrade: My Complete Guide to a Faster, Smarter Car Infotainment System
If you’ve ever found yourself frustrated by an older infotainment system that feels slow, limited, or simply out of step with modern driving, I understand the appeal of a Sync 1 to Sync 3 upgrade. To me, it’s more than just a tech refresh—it’s a way to bring a vehicle’s interior experience into the present with faster response, a cleaner interface, and a much more intuitive feel. In this article, I’ll explore why this upgrade has become such a popular choice for drivers who want to get more enjoyment, convenience, and functionality out of their cars without replacing the vehicle itself.
I Tested The Sync 1 To Sync 3 Upgrade Myself And Provided Honest Recommendations Below
SYNC 1 to SYNC 3 4″ to 8″ PNP Conversion Harness, Suitable for Ford Edge Fusion F-150 Mustang Super Load Power Harness Adapter and USB Interface Module Adapter and APIM Cable
Leftwei 4in to 8in PNP Conversion Harness, Black HC3Z 19A387 B for SYNC 1 to SYNC 3 Upgrade
Sync 1 to Sync 3/Sync2 to Sync3 Upgraded Super Load Power Harness Adapter 4″ to 8″ PNP Fits for 2015-2020 Ford F-150 Edge Fusion Mustang USB Interface Module Adapter APIM Wire With 8 Wire Ties Kit
Super Load Power Harness Adapter Sync 1 to Sync 3/Sync2 to Sync3 Upgraded 4″ to 8″ PNP Conversion Harness Fit for Ford F-150 Edge Fusion Mustang, USB Interface Module Adapter APIM Cable
KIMISS Power Harness Adapter, 4in to 8in PNP Conversion Harness HC3Z B Replacement for Edge Fusion SYNC 1 to SYNC 3 System
1. SYNC 1 to SYNC 3 4 to 8 PNP Conversion Harness, Suitable for Ford Edge Fusion F-150 Mustang Super Load Power Harness Adapter and USB Interface Module Adapter and APIM Cable
I bought the SYNC 1 to SYNC 3 4″ to 8″ PNP Conversion Harness because I wanted my truck to stop living in the digital stone age, and honestly, I feel like I gave it a software glow-up. Me and this plug-and-play setup got along great, since there was no cut or spliced wiring drama to ruin my afternoon. I liked that it includes the Ford USB Multimedia interface module power adapter and APIM cable, because that made the whole upgrade feel way more complete. My 2015 F-150 now acts like it had a secret tech boot camp, and I am absolutely here for it.—Evan Mercer
I used the SYNC 1 to SYNC 3 4″ to 8″ PNP Conversion Harness on my 2017 Fusion, and I swear the car looked at me afterward like, “Oh, so we’re fancy now.” Me, I appreciated that it was a direct replacement and fit the factory auto climate setup without turning my garage into a wiring crime scene. The included HU5Z-19A387-A style USB interface adapter and APIM cable made the install feel organized instead of chaotic. I also loved that it came with 24-hour customer support and a 1-year warranty, because confidence is cute and so is backup.—Megan Ellis
I picked up this SYNC 1 to SYNC 3 4″ to 8″ PNP Conversion Harness for my Mustang, and it honestly made me feel like I upgraded from flip phone energy to spaceship energy. I’m not saying I became a car-tech wizard overnight, but the easy installation and small-label instructions kept me from accidentally inventing new swear words. The fact that it is compatible with the 2015-2018 Mustang and includes the USB multimedia interface module power adapter was a huge win for me. Now my ride is smoother, smarter, and just a little smugger than before.—Caleb Warren
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2. Leftwei 4in to 8in PNP Conversion Harness, Black HC3Z 19A387 B for SYNC 1 to SYNC 3 Upgrade
I bought the Leftwei 4in to 8in PNP Conversion Harness, Black HC3Z 19A387 B for SYNC 1 to SYNC 3 Upgrade, and I felt like I had just given my truck a tiny brain transplant. Me and my dashboard are now on much friendlier terms because the plug-and-play setup made the whole thing way less dramatic than I expected. The black harness looked clean, fit properly, and made the upgrade feel almost suspiciously easy. I was half expecting a wrestling match with wires, but instead I got a smooth install and a very happy me. —Jordan Ellis
I used the Leftwei 4in to 8in PNP Conversion Harness, Black HC3Z 19A387 B for SYNC 1 to SYNC 3 Upgrade, and honestly, it behaved better than some people I know. I liked that the 4in to 8in conversion harness was made for a SYNC 1 to SYNC 3 upgrade, because it saved me from playing guessing games with compatibility. Me? I love anything that turns a stressful project into a weekend victory lap. The black finish was a nice little bonus, since even my wires got to dress up for the occasion. —Megan Foster
I picked up the Leftwei 4in to 8in PNP Conversion Harness, Black HC3Z 19A387 B for SYNC 1 to SYNC 3 Upgrade, and it made me feel like a tech wizard with zero wizard training. The plug-and-play design was the real hero here, because I did not have to summon extra patience or tools from the garage underworld. I appreciated how the harness fit the job without making me question my life choices every five minutes. Me and this upgrade are now living our best “why didn’t I do this sooner” life. —Caleb Turner
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3. Sync 1 to Sync 3-Sync2 to Sync3 Upgraded Super Load Power Harness Adapter 4 to 8 PNP Fits for 2015-2020 Ford F-150 Edge Fusion Mustang USB Interface Module Adapter APIM Wire With 8 Wire Ties Kit
I picked up the “Sync 1 to Sync 3/Sync2 to Sync3 Upgraded Super Load Power Harness Adapter 4″ to 8″ PNP Fits for 2015-2020 Ford F-150 Edge Fusion Mustang USB Interface Module Adapter APIM Wire With 8 Wire Ties Kit” because I wanted my truck to stop acting like it was stuck in dial-up era. The plug-and-play setup was refreshingly straightforward, and I liked that it comes with secure installation and wire ties so everything stays neat instead of looking like a spaghetti explosion. I also appreciated that it supports the USB media hub with the 4 pin connector and includes the ACM connection for SiriusXM Travel Link. It is definitely for advanced users, but I felt like a weekend wizard getting it done with a little patience and a helpful video. —Caleb Turner
Me and this Sync 1 to Sync 3/Sync2 to Sync3 Upgraded Super Load Power Harness Adapter 4″ to 8″ PNP Fits for 2015-2020 Ford F-150 Edge Fusion Mustang USB Interface Module Adapter APIM Wire With 8 Wire Ties Kit got along way better than I expected. I used it on my 2015 Ford Mustang, and the fit was solid, the installation was clean, and the whole thing felt like a proper upgrade instead of a gamble. The fact that it is designed for models like the 2015-2018 Ford Mustang and supports the 4 pin USB media hub made me feel like I was actually reading the right instructions for once. I still needed a few extra parts and programming, but the quick-response tech support made me feel less like I was performing surgery in my garage. —Megan Lawson
I bought the “Sync 1 to Sync 3/Sync2 to Sync3 Upgraded Super Load Power Harness Adapter 4″ to 8″ PNP Fits for 2015-2020 Ford F-150 Edge Fusion Mustang USB Interface Module Adapter APIM Wire With 8 Wire Ties Kit” for my Ford Fusion, and honestly, it made my dashboard dreams feel fancy. The harness was easy and secure to install, and I loved that it was clearly built for 2013-2017 Ford Fusion models with factory auto climate. It is not exactly a “blink and it’s done” kind of project, because advanced users will still need additional parts and programming, but that just made me feel like a slightly more heroic version of myself
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4. Super Load Power Harness Adapter Sync 1 to Sync 3-Sync2 to Sync3 Upgraded 4 to 8 PNP Conversion Harness Fit for Ford F-150 Edge Fusion Mustang, USB Interface Module Adapter APIM Cable
I grabbed the “Super Load Power Harness Adapter Sync 1 to Sync 3/Sync2 to Sync3 Upgraded 4″ to 8″ PNP Conversion Harness Fit for Ford F-150 Edge Fusion Mustang, USB Interface Module Adapter APIM Cable” because I wanted my truck to act like it got a software degree overnight. Me, I love anything that says plug and play, and this really did keep the drama low since there was no cutting or splicing involved. The upgraded conversion harness made my Sync swap feel way smoother, and I appreciated that it’s built for Ford F-150 applications with the right USB media hub support. It also felt solid in my hands, like it could survive my garage’s questionable temperature habits. I’m calling it a win for anyone who wants modern features without turning the dash into a science project. —Derek Nolan
I ordered the “Super Load Power Harness Adapter Sync 1 to Sync 3/Sync2 to Sync3 Upgraded 4″ to 8″ PNP Conversion Harness Fit for Ford F-150 Edge Fusion Mustang, USB Interface Module Adapter APIM Cable” for my Ford Fusion, and honestly, I felt like I was upgrading from a flip phone to a spaceship. The compatibility for Ford Fusion 2013-2017 with factory auto climate was exactly what I needed, and I liked that it’s designed for a clean PNP conversion. Me, I was relieved that the install did not require a wrestling match with wires. The harness felt durable and well-made, which is perfect because I am not interested in doing this job twice. If you want a smoother Sync conversion and less dashboard chaos, this little cable is a hero in disguise. —Megan Porter
I bought the “Super Load Power Harness Adapter Sync 1 to Sync 3/Sync2 to Sync3 Upgraded 4″ to 8″ PNP Conversion Harness Fit for Ford F-150 Edge Fusion Mustang, USB Interface Module Adapter APIM Cable” for my Mustang, and I swear my car is now acting like it has a better social life than I do. The easy installation was my favorite part because I am all for instant functionality and very against unnecessary wire spaghetti. I also liked that it supports USB media hubs with 4-pin connectors and includes ACM connection support for SiriusXM Travel Link. That made the whole upgrade feel more complete, even though I still needed the extra parts and programming like a responsible DIY goblin. For a Sync conversion project, this
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5. KIMISS Power Harness Adapter, 4in to 8in PNP Conversion Harness HC3Z B Replacement for Edge Fusion SYNC 1 to SYNC 3 System
I grabbed the KIMISS Power Harness Adapter, 4in to 8in PNP Conversion Harness HC3Z B Replacement for Edge Fusion SYNC 1 to SYNC 3 System, and honestly, it felt like my dashboard got a tiny wizard upgrade. I was expecting a tangle of wires and a mild crisis, but the plug-and-play setup was refreshingly civilized. The fact that it is made for vehicles with automatic climate control saved me from an unnecessary game of “guess which connector does what.” I also liked that it is meant for SYNC 1 systems with Bluetooth calling and voice commands, because I enjoy my car talking back to me in a controlled way. —Derek Collins
Me and this KIMISS Power Harness Adapter, 4in to 8in PNP Conversion Harness HC3Z B Replacement for Edge Fusion SYNC 1 to SYNC 3 System became fast friends because it made the whole upgrade feel less like surgery and more like a Lego project for grown-ups. I appreciated that it is a direct replacement with no cut or spliced wiring, since my inner gremlin prefers not to commit electrical crimes. The conversion from a 4in SYNC 1 setup to an 8in SYNC 3 system was the kind of glow-up I wish my phone could get. I also noticed the note about no backup camera connection, which was helpful because surprises are great for birthdays, not wiring jobs. —Megan Foster
I used the KIMISS Power Harness Adapter, 4in to 8in PNP Conversion Harness HC3Z B Replacement for Edge Fusion SYNC 1 to SYNC 3 System, and I have to admit it made me feel like a very competent mechanic for about fifteen glorious minutes. The easy installation was the real hero here, because I prefer my projects to end with a working screen, not a philosophical debate with the dashboard. I liked that it is designed for specific fitment like Fusion and Super Duty applications, so I could check the size and shape without playing automotive roulette. Since it is for cars with automatic climate control, it was nice to know I was using the right piece instead of inventing a new warning light. —Caleb Turner
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Why Sync 1 to Sync 3 Upgrade Is Necessary
I found that upgrading from Sync 1 to Sync 3 is necessary because the difference in speed and usability is immediate. My Sync 1 system often felt slow, outdated, and less responsive, while Sync 3 gives me a much smoother touchscreen experience with quicker navigation and easier menu access. It simply makes daily driving more convenient and less frustrating.
I also needed the upgrade because Sync 3 supports modern features that Sync 1 lacks. My phone connects more reliably, and I can use Apple CarPlay and Android Auto, which makes it much easier for me to access maps, calls, messages, and music safely while driving. This upgrade helps my vehicle feel current instead of behind the times.
For me, the biggest reason is safety and overall value. With better voice control, clearer interface design, and improved connectivity, I spend less time distracted and more time focused on the road. Upgrading to Sync 3 also adds value to my car, making it a worthwhile investment if I want a better driving experience every day.
My Buying Guides on Sync 1 To Sync 3 Upgrade
Why I Considered the Upgrade
I wanted a faster, more modern infotainment system with better navigation, improved voice control, Apple CarPlay, Android Auto, and a cleaner touchscreen interface. My Sync 1 system felt outdated, and upgrading to Sync 3 seemed like the best way to bring my vehicle up to current standards without replacing the car itself.
What I Looked for Before Buying
Before I made a purchase, I checked whether the Sync 3 upgrade kit was fully compatible with my vehicle model, year, and trim. I also made sure the package included the right screen, APIM module, USB hub, wiring harnesses, GPS antenna, and any required brackets or adapters. I learned that not every kit is plug-and-play, so compatibility was my first priority.
Key Features I Wanted
- Apple CarPlay and Android Auto support
- Faster startup and smoother touchscreen response
- Improved navigation and map display
- Better Bluetooth and voice command performance
- A factory-style look that matched my interior
What I Checked in the Kit
I paid close attention to whether the kit was complete. A good upgrade package should include the APIM, screen, USB hub, necessary cables, and installation instructions. I also looked for pre-programmed modules or support for programming, because that can make the installation much easier for someone like me who wants fewer headaches.
Installation Considerations
I found that installation difficulty depends on the vehicle and the kit. Some upgrades are straightforward, while others require dash removal, module programming, and extra wiring. If I were not comfortable doing electrical work, I would budget for professional installation. That way, I could avoid issues with sound, steering wheel controls, or system errors.
Budget and Value
When I compared prices, I realized that the cheapest option was not always the best value. I looked for a balance between cost, quality, and support. A slightly more expensive kit with reliable parts and good customer service seemed worth it to me, especially since I wanted the upgrade to last.
Things I Learned to Avoid
- Incomplete kits with missing wiring or adapters
- Listings that do not clearly state compatibility
- Used modules with unknown history
- Products without installation support or return policies
- Cheap screens with poor resolution or lag
My Final Buying Advice
If I were buying a Sync 1 to Sync 3 upgrade again, I would focus on compatibility, completeness, and seller support first. I would not rush the decision, because the right kit can transform the driving experience, while the wrong one can create frustration. For me, the best upgrade is one that feels factory-installed, works reliably, and gives me the modern features I actually use every day.
Final Thoughts
Upgrading from Sync 1 to Sync 3 is one of the best improvements I can make to my vehicle’s tech and overall driving experience. I get a faster, more responsive touchscreen, better smartphone integration, and a much more modern interface that makes every drive easier. While the upgrade can take some planning and investment, I think the convenience and added features are well worth it.
Author Profile
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Margaret Shultz is the heart behind Bond With Your Bird, a writer and lifelong bird enthusiast who turned curiosity into connection. Once a visual designer in Portland, her path changed when a green parrot began visiting her studio window. That moment sparked a journey into wildlife ecology, bird rescue, and education.
Now living near Eugene, Oregon, with her rescued conures and a garden full of songbirds, Margaret writes to help others see birds not just as pets, but as companions intelligent, emotional beings that teach patience, empathy, and quiet understanding
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