I have a 2004 Mach 1 with the stock Mach system in it. The CD player recently decided not to work and rather than buying a new one I decided to just grab an auxilliary jack from the Apple store. I came on here for the best way to install it, but I saw some threads where it looked like something else might be needed. I was hoping I could just plug this thing in the back of the stereo and not have to worry about pins.