I have mine mounted behind the basket and ran the wires along the inside paneling of the seat belt, under the seat and into the arm rest junk holder(don't know what it's called). When its not in use I store inside. The great thing is the cigarette lighter is their.

If you get a chance get the 21-1873 at Radio Shack. It's a GMRS with the same features as the 21-1850. Used it on a road trip and got great distance and clarity between three vehicles. Its was on clearance for $12.97 4 months ago.