Put a test light on your speaker wire to make sure one of the speakers are not grounding out the radio. On my new Miramar the radio had no sound from day 1. Left it at the dealer for 2 weeks, replaced the radio, still no sound. Thor sent me a 3rd radio and still nothing. Was able to get sound from the RCA jacks hooked up to a powered sound bar so I knew the radio was good. After hours and hours of troubleshooting decided to test the speaker wires. Sure enough 1 rear speaker had both wires going to ground. Disconnected it and have sound now through 3 speakers. Probably the wire got pinched somewhere. Will run a new wire when I have the time.
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2018 Miramar 35.2
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