Hi. I want to put my boat in the slip. It's a 1988 maxum bowrider,
mercruiser I/O.

I tried to start it, but it appears the battery is dead. I tried to
jump start it with the jumper, but it would not start. The voltmeter
on the dash indicates 0 bolts. Usually when you hook up the jumper
cables, the voltmeter will jump to 12 volts as soon as the wires are
connected.

I replaced the battery - same problem. I sanded the connectors to
remove any oxidation - made no difference.

Turning the key, nothing either.

The stereo turns on and plays music, but the marine radio will not. I
checked all the fuses under the dash and they all seem ok.

Does anyone have any suggestions? I am a novise boater and bought a
slip for the first time, but need to get the boat going before putting
in the water. I've trailered it the last 3 years with little problems.
PLEASE HELP! my e-mail is Thank you!