I want to add an aftermarket headunit onto my existing Mach 360 system in my '97 Cobra. Do I need to purchase a wiring adaptor kit or the full OEM Amplifier Integration kit? I am using the exisiting speakers but will be adding an aftermarket sub and amp. The link is below

http://www.crutchfield.com/S-2bdTmYJ...sp?g=751&avf=Y

Thanks,
Dave

http://www.saddlebackmustang.com