I have a 90 std hatch back, is the wiring for a tach already on my car because i want to buy either an si or ex gauge cluster so i have a tach. i have an after market sun pro II tach but i cant figure out where to mount it. so iwas just gonna harvest a cluster from a wrecked car or junkyard. Thanks

 

it should be all plug and play. it is really really easy to install an aftermarket tach too if u want help hit me up i cant tell u what wire goes where

 

Yeah it is all plug n play...just make sure that you get a cluster from the right generation ie. 88-89 or 90-91 because they are different!