I have a 1980 Oldsmobile Cutlass supreme was a diesel powered car and someone put a 350 gas engine in and then I believe they put the rally package dash cluster in the car none of the gauges in the rally cluster works now the customer brings me a digital dash cluster I am looking for engine compartment wiring wiring diagram for the diesel 350 engine so I can make sure and whoever installed the gasoline engine has things wired correctly I'm pretty good at GM wiring any color code I am just wanting to make sure someone else hasn't put things incorrectly before I attend to install this digital dash cluster I'd hate to damage it he paid like $750.00 for the digital cluster, I know the pig connector on the cluster or stock dash cluster an the rally package dash cluster are different pin locations, this car's been a little thorn in my side because the previous mechanics working on it I believe it really didn't know what it was doing and I would like to get this done so I can get this thing out of my hair what I have left haha, so any help would be greatly appreciated !