now that that is out of the way
1. disconnect the battery on the car.
2. remove trip piece from around radio , do so as such as in pic

(be carefull to not lose the metal clips, they tend to fly out if your not carefull)
3. take out screws that hold the radio and the heating can cooling controls out

4. remove dimmer switch pannel, do so as such in pic

5. remove screws that hold big dash trim piece



6. pull the trim piece off. just swing it out of the way when its free from the dash. it will take a litle jiggeling to get it out of there

7. remove the 4 screws that hold the guage cluster in

8. pull the cluster towards you, there are 3 plugs behind it, you have to squeeze your finges behind there to unclip them, then take the cluster out.

9. now for the fun part. i will name the 3 plugs 1, 2, and 3 starting from left to right
in plug 2 you will find a brown wire with a white strip, that is power for the light on your tach

on plug 3 there is a green wire with a black stripe, that goes to the rpm wire on the tach. the black wire is your ground and the pink wire is your key on power


i sugguest useing wire splicers like this as they do not require you to actually cut the wire

10. after you have spiced your wires just run them to where ever you decide to mount the tach, then mount the tach. when you are done just put the trim pieces back on in the reverse order you took them off. and reconnect the battery. enjoy!
im not useing a aftermarket tach, i have a oem lanos cluster with a tach in it.

