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Old 12-24-2012, 08:15 PM
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Table Rocker Table Rocker is offline
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Join Date: Oct 2010
Boat: '96 ProStar 205, Sammy Duvall, LT-1
Location: Fayetteville, Arkansas
Posts: 1,623
I believe the blue wire is going to be for the instrument lights and is only hot when your lights are switched on.

One thing to consider is, the hot for your clock is always hot. You probably want your depth finder to shut off with the key like the other gauges.
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