ghost-rider

What in the world does suspension have to do with the gauge cluster? I'm looking for one at the moment, and I searched through a junk yard database and they separate clusters by suspension, prices are also different. I have a 1993 one and it works perfectly fine in the 93 car but there is an extra connector that is missing on my 1994 car, so when I put it in the 94 car there's no illumination, i don't know what else is missing but the gauges work fine, and warning lights light up but no light when headlights go on.

Thanks