Originally posted by 89checkmate
Where is the best place to ground the stereo, and amp in a boat?.
Since boats aren't like cars, you should run your own independent ground back to the battery (or engine block). Most boats have a 10 gauge wire running to the dash for all the grounds- definately not enough.
Originally posted by 89checkmate
Also, I get alot of engine whine through my speakers.
Is your equipment grounded to the batteries or engine block? If not, try disconnecting the grounds and run a ground jump wire from the head unit and/or amp to the block- that should eliminate any ground loops.
If the noise goes away, you need a better ground. If not, try the same with the power wires to the Perko switch.