The for BMW /Audi /VW/ Mercedes-Benz stereo upgrade wire allow to install an aftermarket amplifier and speakers to the OEM radio Fit radio without cutting any factory wires.
Compatible With Original Car Radios With Quadlock Interface Type, Which Facilitates The Replacement of Other Aftermarket Radios.
The Product Mainly Provides Power Supply And Horn Harness, But The Aux Function Does Not Include (Different Vehicle Models, Different Compatibility)
Used To Replace for Pioneer, Sony, Kenwood, Bose And Other Radios (harness Need To Be Connected).
The product is used in the car to quickly replace the car radio, fast and the original interface connection.
Description
Most radio wire pins is vary by model, you may had to move a pin to match with factory plug. Geting power from ignition with red cable provided to ensure there is 12 volts supply. Not compatible with amp systems like Bose, Infinity, On-Star etc