yaar take soldering iron and solder wire
open cluster and take speedo meter out
on back side u see pcb(mother board)iam talking aboud spped dial electronic board not the whole assembly board of cluster
now u see components like capacitor resistor ics stuck with siver matter on that pcb.
just put hot soldering iron on one side and wire on other side for short period of time
for resoldering of electronic component search google