my prob was the location of the antenna for my gyration. I use the mini kb gyration. In the house it has a range of around 25ft. in the car, about 2ft. This is what I did to get mine working.
1. get the gyration working with the car OFF, not running.
2. now get it working with the car ON, running.
From there you can move the gyration antenna around in the car, with the car running, since you got it working with the car off. You can find out where it will work and where it will not work.
I have been using the gyration kb (not the mouse cause i use the xenarc TS), for well over a year now with no problems.