— 43 —Connecting Wires to TerminalsConnecting the ISO Connector (see p.42)The pin arrangement for the ISO connectors depends on thetype of vehicle you drive. Make sure to make the properconnections to prevent damage to the unit.The default connection for the wiring harness is described in 1below. If the ISO connector pins are set as described in 2 or 3,make the connection as illustrated.2WARNINGUnit VehicleIgnition cable (Red)Battery cable (Yellow)A–7 Pin (Red)A–4 Pin (Yellow)Unit VehicleIgnition cable (Red)Battery cable (Yellow)A–7 Pin (Red)A–4 Pin (Yellow)Unit VehicleIgnition cable (Red)Battery cable (Yellow)A–7 Pin (Red)A–4 Pin (Yellow)When the connection is made as in 3 above, the unit'spower will not be linked to the ignition key. For that reason,always make sure to turn off the unit's power when theignition is turned off.To link the unit's power to the ignition, connect the ignitioncable (ACC...red) to a power source that can be turned onand off with the ignition key.1 (Default setting) The A-7 pin (red) of the vehicle's ISOconnector is linked with the ignition, and the A-4 pin (yellow) isconnected to the constant power supply.2 The A-7 pin (red) of the vehicle's ISO connector is connectedto the constant power supply, and the A-4 pin (yellow) is linkedto the ignition.3 The A-4 pin (yellow) of the vehicle's ISO connector is notconnected to anything, while the A-7 pin (red) is connected tothe constant power supply (or both the A-7 (red) and A-4(yellow) pins are connected to the constant power supply).