just had new stereo installed on boat with amplifier and speakers all marine approved.there is a slight hum with radio but while engine is running it out of control. i beleive it is probably the ground. what could i ground it to that i would not get that buzz while engine is running
the boat is a 1992 welcraft wth 5.7 260hp mercruiser with alpha 1 outdrive.
the problem is the boat overheats when you slow down from cruising speed the alarm starts going off and tempature spikes to 180 degrees. replaced impeller,an thermostat bfore season .the boat only over heats when you go...
