www.iFourWinns.com

Here's a puzzler: A couple years ago I added a Clarion 480M amp, a set of speakers and a bridged subwoofer to the stock stereo in my 200H. I have a switch on the amplifier remote turn on wire, so I can otpionally run the stereo without the amp, third set of speakers and sub. Lately I have been having an intermittent problem where the sound through the amp to third set of speakers and sub will sound garbled like a distant radio station fading out of range. This can happen when engine is running or not. I assume it's not the head unit, as I can hit the switch off and have clear sound through the stock speakers. I have yet to seriously troubleshoot the issue, but I'm thinking either the switch is going bad, or a bad connection to the amp, or the amp itself. I suppose it could also be an issue with the head units line level outputs as well. Any thoughts?

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2007 Horizon 200
4.3L GXi/ SX 225 HP

Double check your ground connections. Also, it's helpful if your head unit ground and amp ground are connected to the same ground.

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Current Boat:
2004 Sea Ray 320 Sundancer "Nauti Luvin'"

Previous Boats:
1999 298 Vista "Seas The Day"
2008 H200SS "Nauti Luv"
2006 Tahoe Q4

Yup, turned out to be a ground wire crimp connector that had loosened up. Replaced it, tightened everything up and the problem went away. Couldn't resist messing with gain controls while I was in there. Probably not a good idea.

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2007 Horizon 200
4.3L GXi/ SX 225 HP