I wished that worked, but it won't. I tried burning mp3's to a CD and the CD ended up getting stuck in the NAV unit. Even home made CDs seem to have trouble, according to my wife. Commercial CDs are no problem, but homegrown seems to trip it up. I was hoping a CD with a bunch of MP3s would be a poor mans way of not buying an iPod to keep in the car. Now I think it may be a good way. I bought the GM auxilary input cable and the iPod works great.