Worst case scenario is to use an off the shelf AC converter. If you can keep the power requirements down to 100Watts they are available for about $45. I would like to replace the Compaq Laptop I use in the Winnibago with less costly components. One of the major stumbling blocks is that of the display. There simply is nothing available that competes with the laptop's display. Everything else is way too big/expensive. The GPS mapping program becomes indispensable once you become accustomed to it. Current project is invesitgating a USB Web Cam for better side/back visibility. Keep us posted, it is an interesting project! John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads