best buy has a fm transmitter that you can hard wire into the radio. it is a really nice unit i used to have one in my old honda.
I use one for my XM Roady now. It works, but I don't want to use two. Plus on long trips it can be a pain to find a station that's clear going in and out of different cities. I like this idea just for the cool factor. LOL
Master Certified Auto Glass Technician - 23+ yrs in the biz.