| 1986-91 Mercedes 420 Series Alarm,
Remote Starter, Keyless Entry Wiring Information |
| Constant 12V+ |
Red |
Ignition Switch Harness |
| Starter |
Purple |
Ignition Switch Harness |
| Ignition |
Pink/Black |
Ignition Switch Harness |
| Ignition 2 |
Pink/Green |
Ignition Switch Harness, Accessory 2 |
| Accessory |
Pink/Yellow |
Ignition Switch Harness |
| Tach |
Black |
Coil |
| Brake Switch |
Black/Red |
Brake Switch or Anti-Theft Module |
| Trunk Pin |
Brown/White (-) |
Anti-Theft Unit |
| Parking Lights |
Gray/White L |
And Gray R at Light Switch or Anti-Theft Module |
| Head Lamp |
White/Yellow |
Light Switch |
| Factory Disarm |
Green/Yellow (-) |
Anti-Theft Unit or Driver's Kick Panel |
| Door Trigger |
Brown/White (-) |
Brown/Gray (-) at Anti-Theft under Passenger's
Floor Board |
| Door Lock |
Blue or Green |
Vacuum Lock at Anti-Theft or Pump next to Spare |
| Door Unlock |
Blue or Green |
|
| Horn Wire |
Black/Pink |
Steering Column |
| 1986-91 Mercedes 420 Series Cruise
Control Wiring Information |
| Constant 12V+ |
Red |
Ignition Switch Harness or Use Hot Side of Brake |
| Switched 12V+ |
Pink/Black |
Ignition Switch Harness |
| Ground |
Use Chassis |
Near Cruise Control Module |
| Hot Side of Brake |
n/a |
Brake Switch or Anti-Theft Module |
| Cold Side of Brake |
Black/Red |
Brake Switch or Anti-Theft Module |
| Tach |
Black |
Coil |
| VSS Wire |
Green/White |
Behind Instrument Panel Pin 1 |
|
Notes: Vehicles with Manual
Transmission require Clutch Switch. Some vehicles may require a
speed signal generator and/or other parts/adapters not listed above.
Rostra� Cruise Control module switch settings may differ if you use
a speed signal generator or magnets and a pick up coil |
| 1986-91 Mercedes 420 Series Stereo
Wiring |
| Ground |
Chassis |
| Illumination |
n/a |
| Dimmer |
n/a |
| Antenna |
Left Rear |
| Front Speakers |
4" Dash |
| Left Front (+) |
White |
| Left Front (-) |
Black |
| Right Front (+) |
White |
| Right Front (-) |
Black |
| Rear Speakers |
4" x 6" Rear Deck |
| Left Rear (+) |
White |
| Left Rear (-) |
Black |
| Right Rear (+) |
White |
| Right Rear (-) |
Black |