Hey guys, I got two new connectors plugs to mate to the two stock trailer receptacle connectors tucked over the rear bumper area. One plug (black) has 4 wires for brake / hazzard and L/R signal lights. The other connector (gray) has 3 wires (one is blue for the brake controller feed) and the other two, I can't figure out what they connect to. Does anyone have a color code of what those other two wires go to? One is green with black stripe and the other is orange with black strip. It might be Black with Green stripe and Black with orange stripe. I can't see enough of the wires to tell which is the base color and which is the stripe. The 4 wire plug (black one) is wired up to all the lights on my 7 blade trailer receptacle and all lights work fine. The 3 wire (gray plug) has the blue wire hooked up to the trailer brake feed on the 7 way (that works fine as well), but those other two are left hanging and I don't know what they're supposed to be connected to? Here is a picture of those two unconnected wire (blue circle). What I do (think I know) is that both the gray 3 wire connector and the black 4 wire connector is part of the tow package for our OBS trucks. This one is a 1992 F350 7.3 ZF5 crew cab dually.

In this pic is the gray 3 wire plug. The two wires are in the blue circle.

 

I think orange was battery voltage to charge a secondary 'house' battery on a travel trailer...

I forget the black/green: backup lights?

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