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4th Gen Ram Tech2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I'm swapping for an aftermarket head unit and have the PAC RP4-CH11 which comes with 2 harnesses. I know I am only going to use 1 of those harnesses and that is going to be the B harness. When I pull the factory nav radio out there are 3 harnesses plugged in to it. What are the 3 harnesses for? Since I'm only going to use 1 of the 3 in wondering what the other 2 do. I think the smaller one is for the factory reverse camera?
What are the 3 wiring harnesses for?
