Need a schematic or help on monsoon
There are three connectors on the back of the radio. The two 10-pin connectors are clipped together and plugged into the same socket on the back of the radio so that they look like a single 20-pin connector.
C1 is the black 10-pin connector and the pins are number 1-10. C2 is the black 9-pin connector for the CD changer and the pins are numbered 7-15. C3 is the gray (or white) 10-pin connector and the pins are numbered 11-20. All these connectors are numbered from right to left when looking at the connector with the locking tabs on top and the wires coming out the back.
C1 - Black 10-pin connector
1 - GRAY - left front speaker negative
2 - TAN - left front speaker positive
3 - DARK GREEN - right front speaker positive
4 - LIGHT GREEN - right front speaker negative
5 - BLACK - ground
6 - BROWN - parking light input (lets the radio know when headlights are on so it will dim the display)
7 - GRAY - dash light dimmer input (controls brightness of radio control illumination)
8 - PINK - (Firebird only) power antenna output
9 - YELLOW - ignition controlled power
10 - ORANGE - battery power (for radio memory)
C3 - Gray 10-pin connector
11 - GRAY - (Convertible only) amplifier sensor
12 - not used
13 - not used
14 - DARK BLUE - steering wheel controls input
15 - not used
16 - DARK GREEN w/WHITE - (Camaro only) vehicle speed sensor input for automatic volume
17 - LIGHT BLUE - right rear speaker negative
18 - DARK BLUE - right rear speaker positive
19 - YELLOW - left rear speaker negative
20 - BROWN - left rear speaker positive
C2 - Black 9-pin connector for CD changer
7 - not used
8 - not used
9 - Bare - drain wire
10 - DARK GREEN w/WHITE - right audio signal
11 - BROWN w/WHITE - left audio signal
12 - BLACK w/WHITE - audio return
13 - BLACK - ground
14 - DARK GREEN - power
15 - not used






