Jetta Sedan L5-2.5L (BGP) (2005)
Entertainment System Control Module: Description and Operation
General Information
Optional radio systems "Premium Sound system" and "Radio - Navigation System" use the Digital Sound System Control Module J525 to enhance sound
output and quality.
The amplifier uses 8-channel technology.
The radio or radio - navigation head unit speaker output signals are used as input signals to Digital Sound System Control Module J525.
Control module is installed under driver's seat.
Before troubleshooting or servicing, technicians must be familiar with the functions and operation specifics of the standard or optional radio system or
radio - navigation system where applicable. Always read the owner's manual and review applicable system functions.
NOTE: Additional information.
Owner's Manual
Wiring Diagrams Component Locations
CAUTION: When disconnecting and reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on
performing OBD program and electrical system function checks as specified in.