Horn — Horn circuit Audi A4 B5
All systems — 28 systems
- Air conditioning
- Anti-lock brakes 2
- Anti-theft
- Computer data lines
- Cooling fan
- Cruise control
- Defoggers 2
- Engine performance 1.8l
- Engine performance 2.8l
- Exterior lights 3
- Ground distribution
- Headlights 2
- Horn
- Instrument cluster
- Interior lights 2
- Power distribution
- Power door locks
- Power mirrors
- Power seats 2
- Power top/sunroof
- Power windows 2
- Radio
- Shift interlock
- Starting/charging 2
- Supplemental restraints
- Transmission
- Warning systems
- Wiper/washer
