Here, have a stereo diagram. I don't know what you're asking for, you can't get wiring diagrams for a 'door', you need to get a diagram for a system of components that are all hooked together.

Electrical Diagrams
Power and Ground Distribution
Air Bag Systems
Antilock Brakes / Traction Control Systems
Antitheft and Alarm Systems
Automatic Transmission/Transaxle
Charging System
Computers and Control Systems
Console
Cooling System
Cruise Control
Dash Board
Engine Mount Control Unit
Fuel Delivery and Air Induction
General Module
Heated Glass Element
Heating and Air Conditioning
Ignition System
Instrument Panel, Gauges and Warning Indicators
Lighting and Horns
Mirrors
Oil Pressure Warning Lamp/Indicator
Power Locks
Radio/Stereo
Rear Defogger
Seats
Starting System
Steering Column Lock
Sunroof/Moonroof
Trailer Connector
Transmission Control Systems
Windows
Wiper and Washer Systems