I have an aftermarket single din flip up DVD player that I want to put in my 04 comp g. My vehicle has a 6 disc CD player with the monsoon system and steering wheel controls

My question is does anyone know the part numbers of the wiring harness I would need and also the piece for the steering wheel controls?

Then I would like to know if there is any weird wiring I would need to do so the factory amp would work with the aftermarket DVD player?

Thanks, let me know if u need anymore info