2015 f150 stereo upgrade non sony4/16/2024 ![]() ![]() After testing the battery upon arrival we found that it was on its last leg. I secured the wire with zip-ties and wrapped it to match the factory wires in the engine bay. I decided to create a fuse holder mount out of ABS so that the fuse holder would be secure. The power wire was previously run very loosely and the fuse mount was not mounted under the hood, which can cause issues to arise. It also seemed to make sense to build the amp and processor rack onto the side of the subwoofer enclosure so, I did. You can see the breakdown of the build process of the enclosure below. The client was skeptical, at first, but once the job was done he was greatly surprised and satisfied with the direction we decided to take. The enclosure is sealed and was custom built to spec, to home the 3 subs in the limited space provided behind the rear seat. We chose the Massive Audio GTX 6 inch subwoofers for this system. The jumpers inside the LC7i were also move in order to sum the signal and separate each channel by highs, mids and lows. As you can see below, I also decided to put in a proper ground using nut-certs and a bolt, making direct contact with the metal body of the truck. Each wire had a length of new wire soldered in-between each cut end to extend the connectors to the passenger side of the truck. I had to extend the factory wires behind the seat so that the SONY amp would be retained in order for the factory radio to continue to work properly. The Alpine 5 channel amplifier was installed neatly under the rear seat in the storage cubby. It was ideal to build a rack to mount the factory amplifier and signal processor all behind the rear seat with the subs. As you can see, the original wiring was a bit questionable and very unorganized, and not all components were properly mounted or secured. The client and I decided to keep the installed Alpine speakers and rewire the entire system and add a custom enclosure behind the rear seat to deliver much more bass. We used an Alpine 5 Channel amplifier to power the front speakers, rear speakers, and subwoofers. The system had already been tapped into to provide signal to the aftermarket 5 Channel amplifier and the AudioControl LC7i was used to pull and sum the factory audio signal. We removed the speaker grilles that we installed with the speakers behind the factory door panel speaker grilles. The previous installation was unavailing yet seemed to work and produce music. We had to tidy the install up a bit while adding Hushmat to the doors. The Alpine Type-R front and rear mid-bass speakers were already installed prior to the truck being brought to LIS Audio. Our client also decided to add some sound deadener to quiet the ride and add a bit more mid-bass to the system. This 2015 Ford F-150 had the factory SONY upgraded audio system with an 8” subwoofer behind the rear seat with the SONY amplifier powering all four door speakers. Our client came to us to have the sub-stage upgraded and add a little more power overall to the stereo system all while retaining the factory touchscreen radio. ![]()
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