Custom wiring harness, T-tap makers

[CNADN SIERRA]

I am adding many auxiliary lights and LED to the truck.  (Thats an addiction we can talk about later)  I have the 9L7 upgrade for work lights and such, but I want to be able to plug into the existing lighting to activate other LEDs, indicator lights and relays. I purchased the Putco Blade adaptor so I can get parking, brake, reverse and rear turn signal triggers.  I am looking for a way to do the same for the headlight, high beam and front turn signals and even the bed lights.  Anyone know of a company that can do this?   My other option is to find all the connectors from GM and make them myself.