I just got quite scared reading the 'I'm at the end of the road with my DeVille' thread!
True. Ever since the FCC neutered those things to broadcast with a weak signal, they've suffered badly. Dependin upon how good your FM tuner is, you will get radio drift as you drive. The cassette adaptor is much better as far as sound quality is concerned. It has has that additional wired device that goes into your cassette player.FM Transmitters are complete and utter trash by comparison.