This is an email response I received from the trek now website about the Garmin Nuvi 650 and there products. Hope it helps someone .
Hi ********,
Richard Wentworth wrote:
> Hi , my name is ******** Wentworth.
> My son and I are planning to travel the OBCDR this summer. We have not
> been to this area before and are planning to purchase the Trek now gps
> cd .
> I have a few questions about the The Trek now OBCDR CD.
> 1. Is it compatable with the nuvi650 as it comes right out of the box
> or does a topo map need to be installed first?
The nuvi 650 is an autorouting gps. There are no Garmin GPS's that are
capable of autorouting the OBCDR to my knowledge. We rely heavily on
track logs. If the Nuvi 650 can access a .gpx track log file on the SD
card and convert it to a route then our offroad products like the OBCDR
will work on the device. I believe you will need to turn off the
recalculate function or the GPS will attempt to reroute the route based
on it's map content and will wipe out the newly created route because
the map detail is not complete enough to autoroute the route. I know
that the Zumo 550 will work in this fashion but I don't have any
personal experience with the Nuvi products. Maybe you should contact
Garmin and see if the Nuvi 650 can convert routes in the .gpx format
from the SD card to a route on the Nuvi.
> 2. Are all of the OBCDR sections contained on one cd or is there a
> seperate cd/charge for each section?
Routes 3, 4 & 5 are on the CD.
> 3. If a topo needs to be installed first which one would be most
> compatable with your product?
The Garmin Topo is the only one that I am aware of that will work on the
Garmin GPS.
> 4. Is the Garmin topo on there website compatable with your product?
The Garmin Topo product would most likely display most of the sections
but again, none of the Garmin instruments can autoroute this detail.
> 5. Is the National geographic topo compatable with either the nuvi650
> or your probuct?
Nat Geo Topo! map detail cannot be loaded to the Garmin GPS units.
> 6. What kind of waranty do you offer if any?
We fix any problems with our routes, waypoints and track logs or refund
your money after return of the original CD.
> Any other info you can offer would be very helpfull
Our products work best with GPS units that can support multiple track
logs. If the Nuvi can support multiple track logs stored on the SD card
and these .gpx tracklogs can be converted to a Route on Nuvi it should
work. Sorry that we cannot test every GPS instrument. The best Garmin
units for offroad travel are those that support multiple saved track logs.
> Thank You
> ******** Wentworth
Thanks for your interest.
Jim
