I bought the Garmin RV 1090 gps. It allows me to enter the motor home's height, weight, length and width plus propane in order to keep me from going down roads that have restrictions. It has a big 10 inch screen and sits on top of the dash or mounts on the side window. I have already set it to show truck stops/fuel stations(T/A, Flying J...) to make it easier for me to decide when and where to get fuel. It was expensive at $700 but worth it with the many features it includes. It even has voice activation.
Paul
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