CAR TACHOMETER WIRING

How to Install a Tachometer: 8 Steps (with Pictures) - wikiHow
MethodWarningsThings Needed Get a tachometer and splicing connectors. You can either buy a tachometer new, which usually run somewhere between $30 and $50, or salvage on old one for relatively cheap and install it into your car. The only other specialty item you'll need to complete the job is a package of quick-splice connectors, which are usually only a few dollars at the auto part store. The wires are about 16-18 Adjust the tachometer for the number of cylinders in your engine. New tachometers may be set to wSee all 4 steps on wwwhow51%(241)
How to Wire a Tachometer | It Still Runs
The red wire is for the ignition switch. Connect this red wire so that when the car is started the tachometer will begin operating. T-splice wire adapters allow for new wires to be spliced together with existing ones using pressure connectors that you squeeze around the existing wire