cat 3+34 gr PIN1= Live all the time PIN2= Lights PIN3= Fuel gauge sender. Do NOT tap into fuel gauge in the dash, it has its own link as the senders have 3 seperate connections in the tank. Look for a Brown/Red wire in the boot and tap into that. PIN4= NOT USED PIN5= Earth PIN6= VSS (Vehicle Speed Sensor) you can tap into the ECU for this one. ECU Pin 4 for NON CAT or ECU PIN 3 for CAT Models. PIN7= FFS (Fuel Flow Sensor) again you can tap into the ECU for this one. ECU Pin 17 for NON CAT or ECU PIN 34 for CAT Models. PIN8= NOT USED PIN9= Ignition (live)