Join Date: Feb 2010
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Re: Battery Help
Could it be that the stereo is wired direct to the B1 side of the switch, or to B1 directly? Probably done to preserve the tuner memories when the switch is off. Not ideal but OK as long as it's fused near the battery. Follow the wiring.
If that's the case, there's probably nothing wrong with your switch.
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1998 Jeanneau SO45.2