QUOTE (bigbass @ Apr 4 2008, 09:26 PM)

Garmin is the best for back up service and quailty .They have 60% of the American market so they must be good .
Do yourself a favour DONT BY NAVMAN .There back up service is a joke they make optus look good and they have serious software issues.
Big Bass - Navman don't have a Unit that plugs into a screen via RCAs so the response was not really called for. Navman are quite a good unit, more user friendly and value packed, just like Optus.
I would be more inclined to go garmin unit as. Nice unit.
The other option is to buy a unit that can accept a Navigation module - Kenwood screen with the nav module.