Pinouts >  GM Chevrolet, Buick, Pontiac, Saturn, Cadillac OEM car audio  >  Opel pinouts
26 (10+8+8) pin ISO 10487 Head Unit / Car Audio connector layout
26 (10+8+8) pin ISO 10487 Head Unit / Car Audio connector
also for Philips SC201 W1B (p/n 90 381 124), Blaupunkt SC202 W8B (p/n 90 274 453), Grundig CAR 200 (D) W8N (p/n 90 462 562)

Head unit pinout abbreviations

Pin
Notation
Pin function

Power pins

KL.30 Battery+  (12V direct from Battery). 
GND, GROUND Chassis Ground
KL.15 Ignition powered. +12 V with the ignition key is in the ACC or ON position.
lightbulb image Backlight adjustment
__/ +--- Switched power out

Audio pins

FR+ or RF+ Front right speaker out
FL+ or LF+ Front left speaker out
RR+ Rear right speaker out
LR+ or  RL+ Rear left speaker out
FR- or RF-, FL- or LF-, RR-, LR- or RL- The corresponding speaker ground

Misc. pins

strikeout speaker This pin is used to silence the audio, earthed by some other external components that is connected to the radio.

A

B

4-+12 VOLT BATTERY WIRE 

1-Speaker RR+ (N/C in CAR200)

5-Power Antenna Turn On

2-Speaker RR- (N/C in CAR200)

6-Dash Light Dimmer Wire

3-Speaker RF+

7-+12 VOLT IGNITION WIRE

4-Speaker RF-

8-GND

5-Speaker LF+

C

6-Speaker LF-

1-SDA

7-Speaker LR+ (N/C in CAR200)

2-SCL

8-Speaker LR- (N/C in CAR200)

3-GND

-

4-MCS (MBR)

-

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