Horn — Horn circuit Audi S4 B9 facelift
All systems — 34 systems
- Active bodyworks
- Air conditioning 2
- Anti-lock brakes
- Anti-theft 2
- Body control modules 3
- Computer data lines
- Cooling fan
- Cruise control
- Defoggers 2
- Electronic power steering 2
- Electronic suspension
- Engine performance 3.0l turbo
- Exterior lights 2
- Ground distribution
- Headlights 3
- Horn
- Instrument cluster 2
- Interior lights 2
- Memory systems 2
- Navigation 9
- Power distribution
- Power door locks
- Power mirrors 2
- Power seats 7
- Power top/sunroof
- Power windows
- Radio 5
- Shift interlock 3
- Starting/charging 2
- Supplemental restraints
- Transmission 3
- Trunk, tailgate, fuel door
- Warning systems 3
- Wiper/washer 2
