Howdy! My old Magellan died a while back, and now I am in the market for a new GPS. I'm looking for something that I can use as both a handheld unit while I am on foot, and also something I can use in my rig. I would prefer being able to use 12v power, and maybe a remote antenna setup to keep it working well. My old one was a little iffy when it was laying on the dash. I really don't care whether it has street maps or not. TIA John