You might think about getting a Tom Tom 510.
They are about $499.00 at Best Buy or $370.00 on Ebay.
Will do all your navigation, just punch in destination and follow voice and visual instructions.
Warns you about 2 miles on turns and what lane to be in after the turn!!
Gives ETA, MPH , Mag direction, miles to turn, and on and on!!
Accurate to within 35 feet!!!!
Fred
