I wanted a cup holder on the right side and a place for phones, etc. I used some pieces of maple, rubber shelf mats and a cut down Ikea table leg.
I have since added a GPS in the cavity above the shelf. FWIW: I have found GPS units do NOT need to be in the window of a MH. A fiberglass RV roof seems fairly transparent to GPS frequencies.
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Happy Ford F-53 Class A Owner (2008 Gulf Stream)
2010 Ford Fusion Toad (with 6 speed manual transmission - the only way to tow)
Brake Buddy Vantage, Blue Ox Aladdin Tow Bar,
TST RV 507 TPMS, Power Master Voltage Controller