maineimport wrote: Use the rear speaker lines and get a line adapter that splits into 2 RCA out puts. Then... use a small amp to push the rear speakers.
now convince your buddy he should shell out the coin to do it on his Ford!
I take it you mean 2 "sets" (left and right each) of RCA outs.
The person I'm doin' this for is not that discriminating and is totally happy with the stock set-up. He had the sub and amp leftover from a Civic he owned. I don't see him shelling out any dough, even though he could. It would make my job easier. The only stock piece of audio equipment in my car is a 2' piece of wire goin' to the passenger door. Haven't felt like pullin' the dash out yet just to run a wire.And ya don't have to spend a lot of money to have a good system. Even the cheaper radios, amps, and such run so much cleaner than when I started messin' with this stuff in the mid-80's (remember the early cd players....skip...skip...skip). Good wires and enclosures make a lot of difference.