Re: switch panel wiring
First, consider whether you need to put certain items
that already have their own built-in on/off switch (e.g., stereo, VHF, fishfinder) on a switchpanel. These devices are better off fed either directly from a breaker panel / fusepanel or from a bus/stud setup with inline fuses. In short, you may be able to reduce the number of
switches you need in a switchpanel from 6 to more like 3 or 4.
Second, take a quick peek at this current thread:
http://forums.iboats.com/showthread.php?t=445998
That's a basic hookup for a very basic switchpanel, with the switches being fed from a bus/stud using inline fuseholders. Do you have a specific switch panel in mind? Your selection may have other doodads like molded-in fuseholders/breakers, indicator lights, a negative bus, etc. that make it a little more complex (or, in actuality,
easier).