Take a meter and check for voltage between your power line and ground line.

"tony thomas" wrote in message
news:%WTfe.68268$NU4.41598@attbi_s22...
Boats are not like cars. Boats do not have a ground system in them as the
body is not metal. You need a ground wire from the battery and a positive
wire from the battery and a positive wire from accessory (or wire both to
positive battery). You must have a ground from the battery. Any piece of
metal will not be a ground.

--
Tony
my boats and cars at http://t.thomas.home.mchsi.com

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"T39" wrote in message
ups.com...
Thanks for the outstanding information everyone... I will try out a
couple of things this PM and return with my findings