I'am happy to report that there is a GPS system for our Thera's that works great

.
You get the GPS antenna/car power cable/thera connection cable and Street Atlas USA 2006 for handhelds for under a hundred bucks !!!
It works just as promised and only took about 1 and half (mostly installing and learning street atlas and syncing the maps to my Thera) to get it all up and running.
And to think I was going to auction off my Thera 2032 because of the terrible phone reception.
Only two things.....
1. I do suggest useing smaller maps (no more then 5 megs) since I loaded the whole map of ohio with street level detail (only 12 megs save to my 256mb SD-card) because the search is a little slow because it searchs every city in the state now!
2. The voice promps could be louder.
I'll post some screen shot later (if I remember).
Here's how I got mine.
http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN%3AIT&rd=1
The only thing missng is a car pda holder which I also got on ebay for 15.00 shiping included.