I have 2005 PowerWagon and the POS RB4 is driving me nuts. It's inability to not take me to an interstate no matter what the setting or how close the destination is, the lack of a "map," the stupidity of the navi computer and the inability to show the information for sat radio is getting tiresome. So can RB1 directly replace the RB4? And if so, where is the cheapest place to find them? So far the cheapest I've seen is around $1300. At that price I'll just get an in-dash Kenwood Navi/Sat/CD/DVD combo.

Thanks guys!
John

btw: Yes I am new to the board.