is there anywhere on the ctd where there is a constant 12volt + ONLY WHEN THE ENGINE IS RUNNING, that i could use to trigger an aftermarket daytime running light module. the unit suggests the oil pressure sender, but i can't get to the wire, without taking the body of the pickup off! also, there are three wires to the sender, which then go to (from?) the ecm. i'm reluctant to tag on there, and maybe mess up the oil pressure gauge reading. TIA