Hello,
Sorry for the late reply, just saw your message.
Disconnecting the battery is not necessary when you are doing small mod such as this, just be careful not to short the wire . I usually disconnect the wires when I am working on my radio. If the battery is disconnected for more than 15min, it will reset the computer, and you will loose all your saved config and mileage info display on your dashboard.
Sorry for the late reply, just saw your message.
Disconnecting the battery is not necessary when you are doing small mod such as this, just be careful not to short the wire . I usually disconnect the wires when I am working on my radio. If the battery is disconnected for more than 15min, it will reset the computer, and you will loose all your saved config and mileage info display on your dashboard.