Jumping in to say thanks to everyone who posted on this thread! New ARB ECU is working great to fix my non-functioning driver side (2014 Limited). My only piece of advice is to wear gloves. I shredded my hand with all of the sharp metal edges.
Here are my notes from wiring up to the JBL harness on my 2014 limited. Wire colors listed below are the PAC harness wires.
Grey/Grey Black; labeled "FR" - front right (passenger) door speaker
Grey Blue/Grey Red; labeled "Speaker 5" - front right (passenger) tweeter
White/White Black...
The PAC kit I used is just for connecting to the factory speaker wire. I ran RCAs from the headunit to the amp. The speaker outputs on the amp connect to the PAC wire harness, and the PAC wire harness connects at the JBL amp location. You end up bypassing the JBL amp but using the factory...
I know I'm late to the party, but I found this thread when doing my build. I can confirm that the PAC APH-TY04 works to integrate the factory wiring at the OEM JBL Amp.
I have a 2014 Limited with JBL system. I replaced the headunit with an Alpine F509. I replaced most of the OEM speakers...
