After a long period of time I have decided to go forward with keeping the factory amplifier in the mix...why? Because I like how it sounds.
I have an after market radio that I need to connect to the OEM amp. on my 2012 Acura TL SH-AWD Adanced (ELS SYSTEM) it takes a 28 pin connector (which I have).
I need to create a harness adapter that will allow my amp to accept RCA in... I need 5 RCA

1) Front Left
2) Front Right
3) Rear Left
4) Rear Right
5) SubWoofer

I just have found it to be near impossible to find people who make custom harnesses.
ANy help would be awesome folx. Any help at all.. Attached is the wiring diagram for my models amplifier...

Can Anyone tell me if this is possible and if you have ANY knowledge of wiring let me know your thoughts.