Quote:
Originally Posted by Mr. Adventure
Etrailer,among other places, sells a 7way connector that has a flat four pigtail as one of the inputs. That way you just have to work with the new wires for the brakes, 12v power, and backup lights and you don't have to mess with the four wires you already have.
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Using any kind of adapter in trailer wiring is just inviting problems. Wherever you have a plug in connector (including the trailer harness to TV connector itself) you have a potential for corrosion.
IMHO, all trailer connections are
best soldered and heat-shrink tubing used. That way, you only have to be concerned about the trailer connection itself which can be problematic if not cleaned regularly.
If one is going to use butt connectors, these are the best. They have heat shrink right on them and the have a conductive adhesive (like a low-temp solder) in the joint.
http://cgi.ebay.com/50-3M-HEAT-SHRIN...item5889c8d4fd