How do you install a rev taco into a 2000 Hyundai Excel?

To install a rev taco (tachometer) in a 2000 Hyundai Excel, first, disconnect the negative battery terminal for safety. Locate the vehicle's ignition coil or ECM to find the tachometer signal wire, typically a green wire, and connect the tachometer's signal input to it. Then, connect the power and ground wires from the tachometer to a suitable source, ensuring the connections are secure. Finally, reassemble any panels, reconnect the battery, and test the tachometer for accurate readings.