IceMochaBowl

so the right side of my cluster isn't working. speedometer odometer gas gauge.. the lights all work but the meters themselves don't.
i noticed some of the metal strips on the back of the cluster have been fried and thats what is causing the meters not to work.
i tried throwing a friends cluster in to try that out.. when i put in the last plug in the back of the cluster it fried his too!!!
any idea on what wiring is the problem? bad ground somewhere? anything would help.. thanks in advance for the help!