You can plug into the back of the radio if it has aux inputs. Unfortunately the Taco's doesn't. You can use a cassette adapter, or an FM modulator, but it's not as great sounding. I used this as an excuse to convince my wife that I needed a new radio <img src="/forums/images/graemlins/smile.gif" alt="" /> The Sirius receiver with an FM modulator was $149 at Best Buy, and it also has aux input capability...

hope this helps...

nick