Before I owned my car, someone else did and he had some sort of sub and amp. I'm guessing, he had his own 6x9's. I have different speakers in the in the car now, but they're not wired up at all. How are the wires run from the deck to the trunk? What colors are they? I have a bunch of misc wire back there, but it's wrapped around inside of my trunk. I'd like to remove that, but I won't have time for a couple weeks at least, it would be nice to have rear speakers in the mean time.

On my 2003 coupe the left rear speaker wire colors are yellow (neg) and brown (pos). The right wire is light blue (neg) and dark blue (pos) . The wires should be in the space to the outside of the speaker holes for each speaker. Same thing with mine-previous owner had removed his good rear speakers but had cut the wires and just tucked them into the speaker holes. Hope this helps.
grumpyscav