Thanks Everyone I really have fun putting this together.
Thanks Hic! One of the main factors when deciding what direction to go with this was space I had to leave enough room to be able to move my computer as dorky as that sounds... LOL
KCA-SC100 Satellite radio interface. It seems odd to have one cable running from the head unit to the trunk but, it worked out that way.
This ended up on the passenger side behind some carpet
PXA-H100 and Sirius module I could almost get away with RCA couplers.