The GPS antennae is actually in the center waterfall behind the trim piece. There is a small shelf on the top of the waterfall storage compartment behind the trim. It fits perfectly there and is totally out of the way. Signal reception is perfect. The white wire you see in the pictures is from my old install, it's a dock connector to 1/8" jack iPod cable. I was just using it to test the front AV jack. I'll see if I can get a quick picture of the GPS antenna. If it's too much I will shoot one when I install the Sirius unit (on Backorder) I also have some VSS wire info although I did not hook mine up. Maybe if someone can track this to an easier access point I will give it a try.
Manual Trans 2007 GXP:
VSS High signal Yellow wire to Pin 53 of connector C2 (58 Pins) of ECM
VSS Low signal Purple wire to pin 40 of connector C2 (58 Pins) of ECM
Here are some pics of the GPS (and Sirius when it arrives) antenna install Position. The first pic shows where they are installed. The other pictures are taken looking down from there.
Trim pulled back showing location of antenna:
Here is the little "shelf" that works out perfectly for the GPS antennae. I have an almost full signal according to the status bar on the radio.

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Mean GXP Delivered 1/30/2007 $MSRP +$2K
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