Okay thank you, so to sum up the question and sorry if you answered this and I didn’t pick it up but would I be able to run speaker wire from all of my speakers straight to the headunit? Because I have an AMP control module and a steering wheel button module that id still like to use but I think my speakers would sound loads better without going through an amp that’s sharing power for my subwooferIf you want to run the speakers directly to the amp you'll have to hack up the factory harness or run new wires.
What they should have done is used a MITO box to convert the output to a signal the factory amp could use. Some people have just put a more standard amp in the OEM location.
Here are the wires in the harness: