[JohnR]

Originally Posted by Rockfish9

Ross, second the blue seas stuff, very reliable, don't skimp the quality.
Get a set of brady markers and make yourself a schematic, write down the numbers, it will save you a big headache latter several copies, laminate one and mount it under the console. it's surprising how fast switches accumulate, even in a small boat.., .. dielectric grease, and shrink tube are your friends. do not solder, it is not ABYC compliant, and can lead to broken wires problems because they become too rigid.. wire ties, use plenty and use marine grade, those that are sold at the big box store are not dependable.
If you get into it, I have several different sized ratcheting crimpers, as well a hydraulic crimper, you are welcome to borrow them if you proceed with this.

And PHOTOGRAPH everything before