Need Help: courtesy light/dome light (yes i searched)

[cr34t3d_by_d4rkd3n]

first post, wootL and hello yall...... im working on a 75 1/2t c10 short box step.

I am trying to add additional lights, their draw will be too much for the stock wiring, my question is this, the orange wire supplied to the foot lamp is receiving power from what source? Those who say orange wire off headlight switch is wrong, I cut it and lost power to running lights only...ONLY (yes search function I know)

I need to know where the factory under foot lamps get their power, I understand the whole negative switched theory, no problems there, all white leads have been discovered, removed and replaced. BUT WHERE DOES THIS ORANGE Bas74rd GO!?

Again, the orange + lead that connects to the bottom of the foot lamp is not switched, i have followed it until it hides in loom, about mid dash, held by metal tabs.

Thank you!!!!...

attached pics are INCORRECT!!