I have a 2004 DX Element it came with no stereo so I purchased a aftermarket stereo with xm but I want to put a OEM Radio/CD/MP3 Player which I bought on eBay. I diconnected the after market unit and the wiring harness and the xm connection in different. Nit sure what to do from here? I know I need a different connecting harness but how does my xm wire connect to the new OEM stereo? Is there any help out there or am I going to have to those crazy high install rates at the dealership? I was hoping this was going to be a do it your selfer just need some guidance in the right direction?