This small Cobra was recomended by several Cruiserheads to me:
http://tinyurl.com/4lvge
The whole thing is in the handset, so no mouning problems. There is a small box that the handset and antenna plug in to. I mounted it under my DS seat. It stays under there untill I need it, then I just pull it out between the seat and center console. My antenna is mounted to my roof rack, with the coax running throught the DS back door at the corner.