89 ford ranger instument cluster?

i hooked a amp up in my truck and my instrment panlel stoped working i check fuese they are good even replaced fuse check grund from the batery to the truck had to re do that still no gauges i replace the cluster with a new one it wont move but the lights come on i check the numbers on it agaist the old one it dosnt no have the same number chould that be a probelm also please hellllp if anyone loacal in in greene county ga ill pay up to $50 pleaseeeeeeeeeeeeeeeeeeeeeeeeee helllllllllllllllllllp as i dont have any gages