Here's a pic of the transducer installed, real easy, just cut fuel line post the filter (put between filter and motor), install transducer and clamp down.

Snake cable up to helm.
[img]http://www.ncangler.com/photopost/data/500/medium/100_0988.JPG
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[img]http://www.ncangler.com/photopost/data/500/medium/100_0987.JPG
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I used the ACC switch on my switch panel for the guage
[img]http://www.ncangler.com/photopost/data/500/medium/100_0986.JPG
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Then make a cut out for the guage and wire up the hot and negative and yer now in the fuel management buisness!!