For those of you using gps units on your bikes/trikes - are they wired so you can use the adapter (like you can in a car), or do you just run them on battery? If they're wired, what kind of modification - if any - do you need to be sure there's enough "power" to run the bike and the gps (hope that makes sense)?
In my uneducated non-technical English , do I need to change or add anything to the trike to make sure I have enough "oomph" to run the gps when riding? If I use battery power alone, I think the stupid thing only runs about 2 hours, so I may need to look at "wiring" it somehow.