I have completed installing identical cradles on both my HD Ultra and our GW 1800 Motortrike. The installs were fairly easy and without problem. I used two different antennas both offer about the same coverage. I currently have the HD wired with an audio output cord. However I didn't have the proper wire/connections to wire the GW with audio cable so I am using FM signal 97.9. I can tell a quality difference between the audio cable and the FM signal with the audio cable being superior. The needed audio cable will be here tomorrow from Amazon. I made a metal bracket which I used Gorilla double sided tape to mount the bracket to the top of the brake reservoir. Would I get better reception if I ran a ground wire from the bracket to the bike frame? Or does someone have a better suggestion. Bill