ok so i want to put the subs from my old car into my mustang however i want to keep the mach 360 headunit. i took out the headunit to plug in the red and black rca plugs but the unit does not have a plug for them. there is an unused outlet on the back of the unit. can i but a piece that allows me to hook up an amp to my mach 460 headunit? thanks

 

i had that same problem you need to go to a circuit city or something like that and get an adapter and you hook the rca's up to that and then you hook some other little wires into the back speakers. i dont know much about this stuff as you can tell by the way im describing it but thats what i did and it worked perfectly and the thing you have to get is only like 15 bucks