Dash mounted aftermarket GPS

I use a Magellan GPS that I have mounted via suction cup mount at the top of the windshield, up against the cabover. No noticeable reception difficulties thus far, and I do not expect any in the future.

We have an older Garmin 1300 or 13500 Nuvi... something like that, and yes
often times it does not work well in our C. Keep posting on those that work well, we are maybe due for an upgrade. Sometimes it depends on how many satellites your pinging off of.

We use a Garmin Nuvi navigator with free lifetime map updates. Several after-market ways for dash use of the Garmin Nuvi navigation units are availabe from Internet sources ... such as non-slip bases, suction cups, air vent clips, etc..

We like this approach because we can then use this same Garmin navigator in the motorhome, the pickup, or our sedan. Cellular service is not required for the Garmin because it's map database is stored internally, while your vehicle location is determined from satellites. It's been an outstanding navigation unit for our RV, including off-pavement use in the desert where there often is no cellular service. We supplement the Garmin with large format state-by-state Benchmark map atlases, which are ultra detailed because each atlas covers only one state.

Thanks for all of the replies. This helps a lot.

Our Rand McNally does just fine suction cupped to the windshield beneath our very large cabover {2012 nexus Phantom 23P}. I doubt if any C out there is going to interfere with normal GPS operations.

We love the RM by the way, feature rich, simple stupid with a great 7" touch screen.

:C

Can you be more specific? Are you talking about the small specific purpose ones you hang off the window or the gps modules that plug into your car stereo? I've had both, prefer the window mounted ones. Didn't have much of a problem with the one in the MH, although it did have a tendency to send me on the back roads instead of the freeway. The one in my car tends to loose its place once in a while showing me I'm driving on the wrong side of the road, or through a lake.

We have 2 Garmin Dezl 560 GPS setting on the dash. Both work with no problems.
Wife uses uses second one to find other routes while traveling.

Nuvi 1450 sits on the dash all the time. 12,540 miles to Alaska and back, no problem. I have a B, but it has a big overhang like a C. On edit, I see you are new here. Welcome aboard.