Hello everyone.. I see the last post was 2 years ago lol. So I have a 2021 with "premium sound" I'm looking to do a major audio system upgrade on mines. I did some testing yesterday on finding out which wire is what. I found those exact colors he mentioned for the output. But I only found one signal wire going into the amp.. which I found weird. I'll have to check again. I'll be purchasing those harness to make my own T harness as well..but not sure if I'll be doing a AC dsp..pretty pricey. Anyways I'll be doing morel Maximo 6 components and coax in the rear.. and looking to do the Kicker 48CWRT48 shallow sub 8" to go in the factory box.. im still debating on the amps.. probably one 5 channel or 2 amps. Definitely will be using LC7i. I do car audio installation on the side.. so ill be making a video on how to with this project since I haven't found anyone on YouTube on a full on with the passport. Anyone has gotten anything done these past 2 years. Let me know. Thanks!