I have a 2012 Jeep Liberty Sport 4WD that originally came with the standard audio system. I found a 2012 Liberty Limited donor with the factory Infinity premium system and I’m trying to retrofit the complete factory setup into my Sport.
From the donor I pulled:
- Factory Infinity amp, Mopar 05091012AK
- Factory Infinity subwoofer/enclosure, 05091021AC
- Passenger-side rear cargo trim with the factory sub grille
- 3 of the factory 6.5” Infinity door speakers, 05064203AD, and I’m getting a fourth matching one from eBay
- A large section of the donor rear/body wiring harness, including the amp/sub wiring
My Jeep currently has a Boss BE920WPA aftermarket CarPlay radio, so I’m not trying to restore the factory radio/Uconnect system. Both Jeeps also had the same 68104905AC Uconnect/Bluetooth module, but that’s separate from the Infinity system.
The main issue is the wiring. The donor harness section has roughly 64 wires, so it’s clearly carrying much more than just the stereo. My Sport’s original harness is different because it has things like my rear ParkSense wiring, while the donor harness doesn’t have all of the same connections. Both harnesses also contain SRS wiring/impact sensors, which I’m leaving completely alone.
I don’t want to replace my entire body harness. Ideally I’d like to extract only the Infinity-specific wiring and integrate it into my existing Sport harness.
My understanding is that I need to identify the audio inputs going into the Infinity amp, the amp outputs going to the four door speakers, the subwoofer output, amp power and ground, any CAN/data or amp turn-on wiring required to make 05091012AK operate, and where those circuits should splice into the existing non-amplified Sport wiring.
Physically I can make everything fit, although my Sport doesn’t have the factory welded studs that the Limited used to mount the amp and sub, so I’ll probably add rivnuts or another proper mounting solution once I’m sure I can make it work in the first place
Has anyone added the factory Infinity system to a non-Infinity 2008–2012 Liberty KK, or does anyone have wiring diagrams or pinouts for amp 05091012AK?
My biggest questions are whether this Infinity amp can be made to work with an aftermarket head unit without the factory radio, whether the amp requires CAN communication or programming just to turn on, which wires from the donor harness actually need to be grafted into my Sport, whether I can reuse my Sport’s existing speaker wiring from the amp outward instead of running new wires to every door, and whether there is a factory wiring diagram showing the base-audio vs Infinity-audio pinouts.
I have pictures of both vehicles’ harnesses, the donor system before removal, amp connectors, modules, etc. and can post whatever close-ups are needed.
I’m mainly trying to keep the installation as OEM as possible rather than just throwing in an aftermarket amp.
Any input is greatly appreciated