A friend recently gave me a factory bose cd player out of his maxima to put in mine. Mine didnt come with a factory bose system. The wires mount up directly to the new deck but the sound is horrible. I know bose speakers have amps built in, but can you hook an aftermarket amp to a bose deck? Plus someone cut one of the two antenna wires and hooked an adapter up so it would only have one male end plugging into a factory tape deck. Is this other wire possibly the problem, and if so how can I re-wire the two with a double male end to plug into the bose deck? If you know of any detailed diagrams of nissan cars online it would help too.