I just got that headunit. Can I use both the XM radio and the iPod adapter at the same time or do i have to choose between one of them? Also, where can i get a wiring harness for it, or does it just use the normal pioneer harness, i have an older pioneer deck with a harness thats already connected to the car im installing it in and it'd be sweet if i could just connect this new one to it. Any help would be great. thanks.