I checked them out for my Mom. I bought the Garmin after doing a lot of research. Try Amazon.com......they even sell reconditioned ones with a factory warranty,

 

Do you need a external antenna. Some mods you can't use one with.

 

I would say no. One rental van in Maui where I could not receive a signal with GPS. Not sure why not, but never any other vehicle. My Lance Cab Over Camper sometimes prevents the signal, but only for a minute or two.

Not that I have ever read.

 

what are the thoughts on the Nav systems that the dodges come with? Any good?

 

Dodge is going to Garmin sometime soon

 

I have a Garmin and love it. It is more user friendly than the Tom-Tom. Much simpler to work with, which I like.

 

I bought a Garmin 255WT I needed one with Canada and AK and seems to work real well so far.

 

There is a company out that makes in-dash replacements for Dodge/Chrysler. Basically takes out the factory radio and replaces it w/touch screen radio+nav. Can't remember but I found it online and was thinking of a purch for a Jeep GC.

 

Get yourself an iPhone and some Navigon software. It's the best nav system I've used.

 

read new corvette mag, testing gps

 

TomTom is junk. Go with Garmin. I have had both and the Garmin is def. the best!

 

free app or which one?

 

If you towing a high profile vehicle, you might want to look at the 465T, which takes in all the back roads and once you set your tow height, it will
let you know if there is a low bridge or tressel on your route before you start.

I just updated by Garmin today on line, took 4hrs.