The mute cable is fitted with black ISO connectors and a "Line out" output.
To install the car radio with the "Line in" inputs: Preferably use this type of connection with the brown and green wires and the yellow "mute" wire connected to the back of your car radio.
To install the car radio with the ISO connectors: Disconnect the audio and power cable bundles from the car radio, then connect the female connectors of the mute cable and the power cable to the car radio.
Connect the audio and power cable bundles from the vehicle to the male connectors. If the car radio is fitted with a Mute in, connect the yellow wire from the mute cable to one of the "Mute In" inputs (1, 2 or 3).
For car radios without ISO connectors: You must get an ISO adapter cable.
How do I fit the power cable?
The power cable's red wire should be connected to the constant 12V, the orange wire to the ignition 12V, and the black wire to the ground.
Check the electrical wiring diagram of the ISO power cable bundle for the car radio.
On some vehicles, the positions of the red and orange wires need to be swapped round.
This can easily be done by swapping the two fuse holders.
Do not connect the orange wire to the constant 12V, or you will risk running down the vehicle's battery.