GPS underneath the dash - it might work for ya
Just thought I'd throw out another installation option for gps devices.
I have the delorme earthmate usb gps running street atlas 2004. I originally tested in the front dash and it worked great, rarely ever had less than 4 satelites to pick up from. I wanted to put it in the back window but for some reason it just barely worked sometimes. Maybe it's the rear defroster or the window, I don't know but I knew I had to put it in the front windshield.
So I decided to install it underneath the dashboard right in the center. I have a 2004 accord and you can pull off the top center piece in the dashboard and intall it underneath that and it will work fine(at least for me). I didn't notice any difference between being on top and underneath.
So if you have a dahboard with a panel that can be removed it might be an option for you. It's better than letting it sit out with the ever so attracting "steal me yellow" color.