Originally Posted by gtkid2
So there are two big red wires, one has stripes, that go from the car to the amp/ oil psi gauge on the instrument panel. Which of the two terminals on the backside of the gauge does each wire go to? one terminal is marked +b and the other is marked +L. thank you! 
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"+B" means "Battery" and is the red w/ white stripe (connects via the fuse box to the starter and then to the battery). "+L" means "Load" and is the red wire, and connects (via the fuse box) to the alternator and the load.
HTH