Dale, Since you like to use maps and who the hell don't...I installed a compass on the SWing. It's made by a company called RITCHIE. They have been making compasses for over 150 years. It has a small 12V LED and lights up so a person can see it at night.
Model # RitchieSport X-10-M
I looked at the compasses at WalMart and a few other stores and got false reading from most. This Ritchie is very accurate dosn't jump around or get bubbles in it. It comes with a 5 year warrenty.
http://www.ritchienavigation.com/catalog/search.jsp?search=X-10-M&imageField.x=8&imageField.y=28
Here's a couple of pictures:
From the drivers seat.
From top, looking through the wind screen.
By the way...I just couldn't see the GPS during the daytime hours. I can see the compass just fine.