I have the mach 460 and just bought a Dual radio for it. I bought the correct wiring harness but when I went to wire it up I couldnt seem to figure it out. It seems like there are too many wires.

 

i'm not sure about which harness you got, but the one i bought has a list of all the wires, their colors, and what they did. if yours doesn't have that, you should try to google search it and see if it has a list.

 

what are you having problems with? There should be a couple of potential extra wires(dimmer, amp ground, amp/power ant) but make sure to insulate them and you will be fine. Which hrns did you get? Do you have a mach stereo in the car? Page 2 of my cardomain page shows some integration tips.