Jonathan's communication was also very professional, Jonathan called me and answered all my questions. Turnaround was less than a week, and he provided a really nice set of instructions and followed up with another call to make sure everything was working properly.
Last weekend I had a chance to really test it out with a cross country trip and it worked amazing, my HP2 always had a locked GPS connection and I was able to monitor traveling through state to state, very cool and worthwhile upgrade.
If you are considering adding a GPS to your Scanner, Go Internal using jonwienks Internal GPS Installation services.