FACTORY WIRE CODES FOR CAR STEREO

1987-93 DODGE IMPORTS, EAGLE, MISUBIHI & PLYMOUTH IMPORTS
(Use Scoshche MC01 For Car Stereo Connector)Power and Front Speakers
  1. - Right Front Positive
  2. - Right Rear Positive
  3. - Dimmer
  4. - Illumination
  5. - Empty
  6. - Left Front Positive
  7. - Right Front Positive
  8. - + 12v Constant, Battery
  9. - + 12v Switched, Ignition
Speaker Plug
  1. - Left Rear Negative
  2. - Left Front Negative
  3. - Right Rear Negative
  4. - Antenna Trigger
  5. - Right Front Negative
1989 - UP GEO IMPORTS
(Use Scosche IM01 For Car Stereo Connector)
  1. - Left Rear Positive
  2. - Right Rear Positive
  3. - Ground Return from Dimmer
  4. - + 12v Accessory
  5. - Left Front Positive
  6. - Right Front Positive
  7. - Left Rear Negative
  8. - Right Rear Negative
  9. - Ground
  10. - Illumination
  11. - + 12v Constant, Battery
  12. - Left Front Negative
  13. - Right Front Negative
1984 - UP MAZDA VEHICLES (Use Scosche IM02 For Car Stereo Connector)
  1. - + 12v Accessory
  2. - + 12v Constant, Battery
  3. - Illumination + 12V
  4. - Left Front Positive
  5. - Right Front Positive
  6. - Empty
  7. - Powere Antenna
  8. - Empty
  9. - Empty
  10. - Empty
  11. - Left Front Negative
  12. - Right Front Negative
Rear Speaker Plug
  1. - Left Rear Positive
  2. - Empty
  3. - Empty
  4. - Left Rear Negative
  5. - Empty
  6. - Right Rear Positive
  7. - Right Rear Negative
  8. - Empty

1984 - 89 MAZDA VEHICLES
(Use Scosche IM01 For Car Stereo Connector)
Power and Speaker Plug
B - Powere Antenna
C - + 12v Accessory
D - Illumination
E - + 12v Constant
F - Right Front Negative
G - Right Front Positive
H - Left Front Negative
I - Left Front Positive
J - Right Rear Negative
K - Right Rear Positive
L - Left Rear Negative
M - Left Rear Positive

1985 - 86 MAZDA VEHICLES Front Speaker and Power Plug
A - Drive Amplifier Control
B - Power Antenna
C - Radio Power
D - Accessory Lights
E - Memory
F - Right Speaker Negative
G - Right Speaker Positive
H - Left Speaker Negative
I - Left Speaker Positive

1983 - 84 MAZDA VEHICLES
Speaker and Power Plug A - Graphic Equalizer

  1. - Left Channel Input
  2. - Illumination
  3. - Right Channel Input
  4. - Power for Amp +12v
  5. - Signal Ground
  6. - Left Channel Output
  7. - Right Channel Output
  8. - Ground
Plug B
A - Accessory Lights
B - Radio Power
C - Power Antenna
Plug C
A - Memory

1995 - UP NISSAN VEHICLES
(Use Scosche NN03 For Car Stereo Connector)

  1. - Chassis Ground (12v)
  2. - Variable Illumination Dimmer
  3. - 12v Constant Battery
  4. - Power Antenna
  5. - Right Front Negative
  6. - Left Front Negative
  7. - +12v Ignition/Switchd
  8. - Illumination/Dimmer
  9. - Right Front Positive 1
  10. - Left Front Positive
Rear Speaker Plug
  1. - Right Rear Negative
  2. - Left Rear Positive
  3. - Left Rear Negative
  4. - Empty
  5. - Right Rear Positive
  6. - Empty

1982 - 94 NISSAN VEHICLES (Use Scosche NN02 For Car Stereo Connector)

  1. - Left Front Negative
  2. - Right Front Negative
  3. - Power Antenna
  4. - Dimmer
  5. - Ground
  6. - Left Front Positive
  7. - Right Front Positive
  8. - + 12v Constant, Battery
  9. - Illumination/Pilot
  10. - +12v Switched, Ignition
Rear Speakers
  1. - Right Rear Positive
  2. - Left Rear Positive
  3. - Open
  4. - Right Rear Negative
  5. - Left Rear Negative
  6. - Open

1987 - UP TOYOTA VEHICLES (Use Scosche TA02 For Car Stereo Connector) Front Speaker and Power Plug

  1. - Right Front Negative
  2. - Left Front Negative
  3. - Accessory +12v
  4. - + 12v Constant, Battery
  5. - Right Front Positive
  6. - Left Front Positive
  7. - Chassis Ground
  8. - Empty
  9. - Empty
  10. - Illumination +12v
Rear Speaker Plug
  1. - Right Rear Negative
  2. - Left Rear Negative
  3. - Right Rear Positive
  4. - Empty
  5. - Empty
  6. - Left Rear Positive

1982 - 86 TOYOTA VEHICLES
(Use Scosche TA01 For Car Stereo Connector)
Front Speaker and Power Plug

  1. - Right Front Positive
  2. - Left Front Positive
  3. - +12v Switched, Ignition
  4. - Power Antenna
  5. - Right Front Negative
  6. - Left Front Negative
  7. - Chassis Ground
  8. - Amp Remote
  9. - Illumination/Dimmer
Rear Speaker Plug
  1. - Right Rear Positive
  2. - Left Rear Positive
  3. - Right Rear Negative
  4. - + 12v Constant, Battery
  5. - Left Rear Negative
  1. - + 12v Constant, Battery