Cockpit switches
 

Hello:

I have a 1995 Talari with a 350 Mercruiser. I cannot get my console switches to work.
The bilge, blower, horn, acc switches do not work. They worked last year, but not this year.
Could this be tied into my ignition switch?

I have been able to get them to work by switching the power leads on the battery.
But when i switch leads, then the power trim does not work.

Thanks