07 GMC Yukon, Non denali, acc. lead

I just need a darn accessory power lead at the in cab fuse panel or under the dash....not in the engine compartment.

Oh yes...in the cold tried to find one with a lead and could not.

TIA

Accessory:  brown or yellow   + @   ign harn or BCM, lt. grn plug, pin 21 

The BCM (Body Control Module) is to the left of the steering column.

I would have to agree with that....in addition..the constant wire at the ignition harness is only rated for 2amp max. So for your main power on the relay input  use either RED / black (60A max rated) at the fuse box, black 40 pin plug, pins F1 and E3, or go directly to the battery and install a fuse.

wire the relay as such.....30 fused to constant......85 to ground.....86 to accessory......87 to device....87a not used, insulate.

BTW, just in case someone doesn't know the difference...

An ignition wire will show 12v+ with the key in the run AND start positions,and lose power when the key is off and acc position if equipped.

An accy wire will show 12v+ in accy position (if equipped) and run only. It will lose power with the in the off and start positions.

Push button ignitions are another story..you must verify those with a meter to know for sure whats happening.