Connectors for car audio#ISO 10487

The ISO 10487 is an ISO standard to standardize the connection plug for the car radio and other audio devices in motor vehicles.

Standard

The standard ISO 10487 defined in Part 1 of the 1992 connector and their pin assignment Part 2 1995 their electrical requirements.

Plug

In many vehicle models will use the plug and is usually abbreviated as ISO plug.

Contact assignments

Look at the lines for contact / rear view / cable connection side

Kontaktbenummerung Block A and B

Block A: electricity and power connectors

Black, staggered locking latch

Contact assignment of the power connector conforming to ISO 10487

However, some car manufacturers use their own contact assignments, especially the terminal 15 ( ignition positive ) and 30 ( permanent plus ) are often interchanged. This is reflected in the fact that the radio with the ignition off can not be turned on and the settings are lost.

Manufacturer specific contact assignments

Block B: speaker connection

Brown, locking center.

Uniform for all manufacturers.

Block C: Extensions

Segmented in C1- C3 - partly individually - in the colors yellow, green and blue

Many radios have the expander module, which is divided into three segments.

• C1 (yellow plug ): Here are the four pre-amp signals for operating a power amplifier. In addition, a control line available to the amplifier on and off.
• C2 (green connector ): Often used to connect a handsfree or remote control. In hands-free operation in addition to the pure radio mute the playback of the conversation through the car radio is provided.
• C3 ( blue connector): Common for the use of a CD changer used. Meanwhile, by means of a special adapter operation of USB devices (USB drive, SD card, external hard drives ) also as CD changer possible. In some devices the TMC signal for external navigation equipment is provided.