ISO 10487 car connector


ISO 10487 connector

ISO-A connector (Power)
PinSignal
1Speed signal
(speed-dependent volume control)
2Phone Mute
3Reversing light switch
(used for satellite navigation)
4+12V from Battery
5Power for electronic Antenna
(+12V output 150-300mA)
6Illumination
(+12 V input when the lights are on)
7+12V Power
(Switched via Ignition key)
8Ground
On some cars the +12V Ignition and Battery positions are reversed

ISO-B connector (Loudspeaker)
PinSignal
1Right Rear +
2Right Rear -
3Right Front +
4Right Front -
5Left Front +
6Left Front -
7Left Rear +
8Left Rear -

ISO-C connector [mini-ISO]
 C1 (external amplifier)
 C2 (remote control)
 C3 (CD changer)
PinSignal
1Line out Rear Left
2Line out Rear Right
3Line out common Ground
4Line out Front Left
5Line out Front Right
6+12V switched (max 150mA)
7Receive Data
8Transmit Data
9Chassis Ground
10+12V switched (max 150mA)
11Remote control In
12Remote control Ground
13CDC Data In
14CDC Data Out
15CDC +12V permanent
16CDC +12V switched (max 300mA)
17CDC Data Ground)
18CDC Audio Ground
19CDC Audio Left
20CDC Audio Right

ISO 10487 only defines the physical attributes of the connectors, not the pin/signal designations.
The connector wiring depends on the manufacturer.