Car Audio Stuff

Here is some hard-to-get info about In-Car Entertainment (ICE) wiring ...

ISO Connectors

ISO Connector

View of the connectors that plug into the car stereo equipment - note the position of the locating lug

Connector B

used only for

B 1 Right Rear +
B 2 Right Rear -
B 3 Right Front +
B 4 Right Front -
B 5 Left Front +
B 6 Left Front -
B 7 Left Rear +
B 8 Left Rear -

Connector A

used only for

A 1 Mute from Cell-Phone
A 2
A 3
A 4 Memory Power (12v direct from Battery)
A 5 Power for Electric Antenna
A 6 Dial-light illumination (car side light circuit)
A 7 +12V Main Power (Switched via Ignition key)
A 8 Ground (Chassis)
A wide range of ISO connector adaptors are available to allow easy interfacing between an ISO-standard radio and the vehicle wiring harness.
Don't cut the wires - visit a car accessory shop (in UK try Passion Automotive or Halfords).


Some cars (notably Audi/Volkswagen and Opel/Vauxhall) do not conform to the power wiring (ISO-A) shown above.
For these German automobiles connect the the memory wire (usually orange) and power wire (usually red)
together and connect both to un-switched +12V.

Antenna (Aerial) Connectors

Adapters are available to facilitate changing between the (older) RCA and (current) ISO antenna cable connector and radio antenna socket.

Don't cut the cable - visit a car accessory shop (in UK try Passion Automotive or Halfords for a good range of bits).

Auto Breakdown and Recovery

The boy next door to uncletony has just started his own vehicle breakdown and recovery service.

For motoring assistance in North East Scotland call:


07711 052 407 (Mobile)
01224 748167 (Home)

Car breakdown and recovery by Kinnon Mechanical Services

Submit your I-C-E tips 'n' tricks to uncletony

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Rev: 10-2009