The only thing I got accomplished today was installing the gps antenna. I chose the factory location for it. If it works there for the factory gps it should work for me

First remove the ac vents up top. Two screws hold this in.
Next you slide out the vent assembly and set it aside.
Now your left with this massive hole.
With this out of the way you can see the top of the duct work. The gps antenna needs to sit on top of that duct work. There is piece of insulation on top of it and I chose to go under the insulation but on top of the duct work.
You can see the insulation just sticking up above the duct work in the center in the picture below.
I had planned to use a piece of flat metal under the insulation and have the gps antennas magnet hold it down from above the insulation. Thus pinching the insulation between the gps antenna and the metal plate I had. The problem I ran into was that the gps antenna that came with the stereo wasnt magnetic. Its a reman kit deal that an ebay seller did. The gps antenna they bought to put with the stereo isnt like the one that normally comes with it. So faced with this problem I used the double sided tape they included with the antenna to hold the antenna to the top of the plastic duct work. I cant see it moving since nothing can disturb it there.
I routed the gps antenna wire down beside the ductwork leaving the cable behind the double din cage for now.