I think Belkin do a more standard fm transmitter than takes a triple A battery and has a short wire to connect to any 3.5mm female jack. That should do the job for the tunes part. Or if you're feeling adventurous you could open up your dashboard to see if your stereo has an audio in port. Even cd multichanger ports can sometimes be hacked to work with a generic audio input (if you don't plan on useing a multichanger).