[jcm]

Scosche makes an adapter to tie in behind the radio so you can use the radio buttons to control the ipod (it charges it also). I just purchased an 08 with the JBL system and was planning on having the xm added by the dealer. They had another ipod adapter that would not work with the xm, I was told it had to be xm or the ipod adapter, but not both. The scosche unit (part # AXIPTA) it supposed to work with the xm installed. It intalls somewhere between the two. It looks like it's all plugs and harnesses, no cutting into existing wiring. Crutchfield.com sells the unit for about $175 I believe. Once the xm is installed, the wiring tie in is supposed to be behind the glove box.

jcm