Most boaters know that the 12-volt DC receptacle in their boat's dashboard can quickly corrode and become useless in the harsh marine environment. The good news is that it's easy to install a receptacle designed specifically to withstand these rigors for years on end.
Installation is quick and can be done with a few simple tools.
When surface-mounting, remove the old receptacle and attach the wires to the new one. With the mounting plate around it, slip the new receptacle into the hole and screw the plate to the dash. The Sealink receptacle fits standard holes, and a rasp or file can be used to enlarge holes that are too small. This mounting choice is best when there is no access to the back of the dash, when the hole edges have been chipped or damaged, or when a mounting plate with screws has been used previously. When flush-mounting the receptacle, drop it into the hole so just the flange remains outside.