Hello I'm new to the forums ! I just bought a 06 GXP and I'm install all new 6x9s due to them being blown and I also have 2 kicker l7 s that will be pushed by a fosgate T1500.1. My question is I will always be buying a new head unit for the car and I plan on using the stock amp what wiring harness will I need to buy for that? I don't care about the on star or anything else