What have you done to troubleshoot it?
The radio needs 12 VDC from the house DC buss.
The house DC buss receives 12 VDC from the house battery bank through the USE/STORE switch and the 50 amp DC breaker, or from the converter, or from the chassis battery/alternator through the BIRD/BIM.
So you say it doesn't work when driving but works when parked. Does it work when parked without being plugged into SP? Does the fridge work when the radio doesn't?
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Ted & Melinda
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