Originally Posted by avfn
....WE have yet to work on the 4 way flat to hook up to my car and get the tail lights
working so I can legally register and drive it but i'm so close!!! the inside is done esthetically and now i'm just trying to get the guts to work out.....
Glad your making such wonderful progress.
If your going to have the plug put on your tow vehicle consider having them put on a 7 blade Bargman plug. It probably won't cost any more than getting a 4 flat plug wired in for labor for the same connections.
The adapter from 7 blade to 4 pin is around $10 so if your trailer currently has a 4 pin flat it's no big deal to use it with the Bargman but....
7 blade provides extra connections for things like running 12 volt to trailer from car, or trailer brakes
. Some folks even add a backup light
to the trailer using the "extra" aux. connection
Bargman tow side of plug almost always have an attached cover that protects the connections when not in use.
Preserves your options in the future, Bargman 7 blade is the stock plug on at least some Scamps and many RV's don't know about Boler
. The local retailers will have the Bargman, it's a pretty stock item.
PO of my scamp
cut the 7 blade plug off trailer and stuck a 4 pin flat on, either because it matched what he had on his truck for utility trailer OR he thought the 7 blade was some sort of weird "Scamp" only plug rather than the stock plug for an RV. Sigh.
Here is the normal connections and wire sizes for Bargman as found on the web.
1. White / Ground return/ 10 ga
2. Blue / Electric brakes
3. Green / Tail, Running, License
/ 14 ga
4. Black / Battery
charge Line/ 10 ga
5. Red / Stop and LH turn /14 ga
6. Brown / Stop and RH turn/ 14 ga
7. Yellow / Auxiliary and back up / 14 ga
4 pin (or adapter to 4 pin flat) only uses connections number 1,3,5,6. You can always use the other connections if you have the need or desire to add them to the trailer. Battery
charge or electric brakes
seem the most common additional items people want running to the trailer eventually. Some people bump the ground and battery
charge line to 8 ga wire to better handle charging trailer battery while they drive. (smaller number = bigger wire)