I am trying to replace my original stereo in my 99 v6 mustang. I have all of the needed wiring and pieces, but the stereo will not play. I hooked up the original, and it worked fine. I thought that I didn't have a mach system, since it is a stock v6, but I think that the stereo will not work unless it has both the original CD player and the radio hooked up. Is there anyway to bypass this or did I not hook the other stereo correctly? The deck is a pioneer premier. Please help if you can.