2in1 Multi-Function Gauge's installtion:Cut an 85mm (3 3/8") hole in the panel and allow a clearance of 55mm (2 3/16”) behind the panel to fit the gauge. Put the gauge in the hole and screw down. Fuel Level Gauge, Water Temperature Gauge, Oil Pressure Gauge and Voltmeter's installtion: Cut an 52mm (2 1/16") hole in the panel and allow a clearance of 55mm (2 3/16”) behind the panel to fit the gauge. Put the gauge in the hole and screw down.
Securely fasten GPS antenna, preferably outdoors (or inside front windscreen) so that it has a clear view of the sky to pick up satellite signal. Connect the antenna cable to socket in the back of the gauge. Do not cut cable.