The Tire Minder booster occupies a little spot in the battery box, out of the weather and it was an easy hook up. It's getting crowde in there since that is also where the shunt for Trimetric sits. Works perfectly. It's the little white box in the photo.
The transmitters are mostly reliable, but do require that one cleans the batteries periodically and, in my case, replace the batteries annually. Actually, I have to clean or replace one right now, following my dash to St. Andrews, NB. Jim