Fuel sending wire at dash

J-B Racing

Forced Induction
I am installing a digital dash that is for G body and I would like to know if someone knows which wire at the dash is the sending unit wire.
Was there a digital dash in there before, I was advised you could NOT go from Analog to Digital or the other way around
No. I removed the stock Dash and installed a digital. Apparently their is a procedure to follow.
I will get it going one day i guess...lol