5th wheel wiring colors for an '03 2500HD

[Red2500HD]

I decided to add an in-bed plug for my 5th wheel. I have both the HD trailer towing pkg and the 5th wkeel package. I located the wiring harness under the front of the box. Attached to the bundle of wires is a tag with the following written on it:

 

WHT............GRD

GRN DK........RH TURN

Yel...............LH TURN

BRN..............RR LPS

GRN LT..........B/U LPS

BLU LT...........____stop lp

RED...............PWR FEED

BLU DK...........AUX

 

Now, some of these are obvious as to what they are for, but am stumped as to what these do:

 

BRN, BLU LT, RED, and BLU DK

 

Keep in mind that in '03, they changed some colors around so they are not the same as earlier years.

[ranchhand]

the light blue is the CHMSL, for a center high mount stop light, some of the others may just be repetative

[Shotgun]

You should find all the info you need right here --->Trailer Wiring