Here is the stereo radio wiring information for your 1998 VW Beetle body with the standard, symphony, Monsoon, or Bose systems. It will be useful when installing an aftermarket radio, sound stereo system, or other automotive accessories. Make sure to grab the appropriate tools to test all the wires in your Volkswagen Beetle. Please check it over and use it as a GUIDE to help you locate the appropriate wires. This schematic is provided free of charge and may not be 100% accurate. Failure to properly test all the wires may lead to vehicle or bodily damage. All information is provided as-is and accuracy is not guaranteed.
If you find any conflicting info please leave a comment with what you found in your VW Beetle. If you don’t see the audio radio wiring diagram you need comment and we will try to add it ASAP. Thanks for looking!
1998 VW Beetle Audio Wiring Radio Diagram Schematic Colors
Car Radio Constant 12v+ Wire: Red/White
Car Stereo Ground Wire: Brown
Car Radio Ignition Switched Wire: Yellow/Red @ Defroster Switch
Car Stereo Dimmer Wire:
Car Radio Illumination Wire:Gray/Blue @ Defroster Switch
Car Stereo Power Antenna:
Car Radio Amp Turn On Wire:
Left Front Speaker Wire (+) Positive: Light Blue/White
Left Front Speaker Wire (-) Negative: Brown/White
Right Front Speaker Wire (+) Positive: Red
Right Front Speaker Wire (-) Negative: Brown/Red
Left Rear Speaker Wire (+) Positive: Red/Green
Left Rear Speaker Wire (-) Negative: Brown/Green
Right Rear Speaker Wire (+) Positive: Light Blue
Right Rear Speaker Wire (-) Negative: Brown/Light Blue
Center Channel Speaker Wire Positive / Negative:
Subwoofer Speaker Wire Positive / Negative:
Radio Size: 1 Din – Single Din
Radio Removal: Requires VW Beetle Radio Removal Keys
Keep in mind if you are installing a new radio you need the radio removal keys, the wiring harness, the antenna adapter, and the mounting kit as well. During installation we recommend removing some of the plastic behind the OEM radio to help fit the new aftermarket radio all the way in the dash.
REQUIRED PARTS FOR AFTERMARKET RADIO INSTALL
WIRING HARNESS FOR NON AMPLIFIED:
Amazon Metra 70-1784 Radio Wiring Harness for Audi 88-99/Volkswagen 80-Up
WIRING INTERFACE FOR AMPLIFIED / MONSOON SYSTEM:
Amazon Metra 70-1787 Radio Wiring Harness for VW/Audi Bose Integration 1993-2007
MOUNTING KIT FOR SINGLE DIN AFTERMARKET RADIOS:
Metra 99-9008 Dash Kit For VW Beetle Kit 98-Up
ANTENNA ADAPTER FOR INSTALL:
Amazon Metra 40-VW54 VW Amplified Antenna Adapter
STEERING WHEEL CONTROLS ADAPTER:
Metra Axxess ASWC-1 Universal Steering Wheel Control Interface
RECOMMENDED TOOLS FOR THE INSTALL – SAME ONES THE PROS USE!
– Klein Wire Cutters / Crimpers
– Gardner Bender Auto Wire Stripper
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2003 beetle! Change the stereo from a Monsoon to a Clarion but no sound. What can I do to get sound?