Re: Switch identification on 1998 Rendezvous
Chances are good that no one has the same boat and can tell you for sure. Below is a wiring diagram for a 22'Cierra. No the same as what you have, but it does show the wire color codes used by Bayliner in 98.
Just look at the back of the switch and see what goes to what.
It's also pretty easy to turn it on and see what comes on and goes off as you flip the switches.