This harness adapts the factory GLI LED taillight wiring for use with halogen-spec or aftermarket taillights. It splits the shared PWM brake and turn signal into separate outputs and wires directly into the J519 / CECM for proper signal routing.
Features
Converts GLI NAR LED wiring to halogen spec with independent brake and turn channels
Hardwires to the J519 (CECM) module for accurate signal output
Retains full taillight functionality with a clean and reliable layout
Includes a detailed PDF installation guide
Fitment
MK6 GLI models equipped with factory NAR LED taillights
Designed for use when installing aftermarket or halogen-spec taillights
Not plug and play, wiring and splicing are required
Compatible with taillights that require separate brake and turn inputs
Why Use This Harness
Factory GLI LED taillights share a single PWM signal for brake and turn lights. Many aftermarket and halogen-style taillights use separate circuits for each. This harness splits and reroutes the signal, allowing full functionality without electrical issues or signal conflict.
Notes
Requires splicing and wiring, this is not a plug-and-play adapter
Always disconnect the battery before wiring
Double-check all wiring and connections before powering up