I have a stock in-dash tach for my 72 GS but no wiring harness. Does anyone have any input on the in-dash tach harness sold by Year One and Cars? Is it correct for a stock tach or is it made for the repop tachs? Thanks in advance.
The stock tach is very simple. One signal wire to the negative side of the coil, and the tach body is grounded. That is it, besides the 2 bulbs for illumination. Aftermarket tachs frequently have a key on power lead, a separate ground wire, and the signal wire.
