How do you wire in a tacho in a xg falcon?

To wire a tachometer (tacho) in an XG Falcon, first, locate the ignition coil and connect the tacho's signal wire to the negative terminal of the coil. Next, connect the power wire to a 12V source, such as the ignition switch, and the ground wire to a suitable ground point on the chassis. Finally, calibrate the tacho according to the manufacturer's instructions for accurate readings. Always consult the vehicle's service manual for specific wiring diagrams and safety precautions.