After researching on the forum (thanks) I decided to pick up a Tach that would fit the Empty/dummy slot in my dash. I picked up a Bosch Tach 3-3/8" which I understand is the modern version of the classic SunPro gauge.



I think it fits pretty well and matches relatively nicely to the stock gauges. I may fabricate a plate to mount the gauge behind the dash panel at some later point but this was a simple quick install and Im happy with the results!

 

Good job. That's essentially what I did back in 1980, but I used several wraps of electrical tape. My brother-in-law did that on his 1968 GTO and passed that tip along to me.

 

Looks good. You can tap into any gray lighting wire.

 

x3 Nice job. Like the (other) Eric stated - gray wire. That's a nice looking steering wheel, also.

 

I have zero experience or knowledge of electrical systems, so im hoping everyone can help me understand. The radio/stereo was plugged into BAT connector. I plugged the Tach into the BAT connector and I moved the stereo up to the slot right above it (not sure what its for). Both tach and stereo work. Below is a picture (red wire is Tach and the wire above it with the blue plug is the Stereo). Is this set up okay? I dont want an electrical short or worse, a fire of some sort....

This is a picture of my fusebox.

 

Anyone? All help and info is very appreciated!

 

I believe the BAT terminal is hot whether the key is on or off. You want the tach connected to a keyed source that's off when the key is off. If you have an aftermarket digital style stereo, it requires a memory wire that is on when the key is off and a power wire that is on when the key is on.

 

One of these may be of use in this situation:

 

 

You have four spade terminals to plug things into. Radio needs 12v with key off, tach needs 12v with key on. Now figure out which terminals are live with key off and on. Get a multimeter or test light and touch each terminal to see what's what.