in my 1996 continental i had my ipod hooked up via tape adapter and its cd quality. Though the ipod's output may be a tad low volume comapred to cd, just crank up that JBL system and it sounds fine. The FM transmitters suck. I have tried 2 of them ,and its very low power, staticy and totally not worth it. Tape adapter is the way to go. Just keep it clean. BTW, on my radio, the tape adapter is very sensitive to resistance by the tape, which many tape adapters have. If thats the case, take a pencil and put it in the gear of the tape adapter and spin it around really fast a few times. Fixed any issues i had.