Im going to install a few autometer gauges in my 2000 F-150 4.6. i was curious about where the oil pressure sending unit is. i know its supposed to be on the drivers side of the engine toward the pullys. I got under and looked for a bit and couldnt find it. is it somewhere else was i misinformed? also i hear about people installing a "t" fitting so that the factory light would still work. any info on how to wire this and what they mean by t fitting. is it something you buy or is it just a t junction in the wiring? thanks for any help