[C320-list] High Water Alarm

[Tom Grass]

We are looking at installing a high water alarm on our C320.  West Marine
sells a specific unit that sounds a horn when the water reaches a certain
level; this is a separate circuit from the bilge pump wiring.  Our boat
also has a light that comes on when the bilge is running (in AUTO mode).
Could a horn be hooked up to the light circuit to sound when the bilge is
on?

Thanks,

Tom Grass