I plan on installing a Pioneer AVH-P4000DVD in my 04 ss and was wondering what all i need before i get started with the install.I have the bose factory six disc head unit know and i dont care about losing the steering wheel controls but i need to know what else will be needed to adapt to the trucks wiring harness i havn't been able to find anyone that has a step by step on how to for this truck.any help would be aprieciated.