Audio Systems: Hooking up Sirius to Auxiliary, auxiliary input adapter, chevrolet 2002

Question
I have a 2005 Silverado with the OEM radio which has the single cd player with the band/cd aux button.  I bought the sirius connect vehicle kit (SCVDOC1). I have the sportster 3 radio.  It gives you the ability to hide the control head and control the sirius through the oem radio aux button.  The problem that I have is the SCVDOC1 kit comes with an 8 pin DIN cable which is round and the aux plug in the back of the radio is not.  The manual has the pins labeled as:
1. battery
2. power enable
3. serial data (RX)
4. ground
5. Audio right
6. Serial data (TX)
7. audio ground
8 audio left
Is there an available cable to make this work?  I can't find one anywhere.  I think it would be fairly easy to splice but I don't have the schematics for the OEM radio and I don't have the aux plug either.


Thanks for the help.
Mike

Answer
What you are trying to do is imposible  the data protocol is not the same and they can never comunicate
your only option is to use the aux interface for your factory radio

http://www.oemautosound.com/pc-296-83-piegm12-aux-chevrolet-2002-2007-auxiliary-...

or buy a sirius for gm vehicles