Adapter harness for installing W8 and Skoda sunroof or none sunroof style lit dome light overhead consoles into MK4 Golf/Jettas and B5/B5.5 Passats with normal dome lights. The adapter converts the factory 3 wire plug into the W8's 6 cavity style and has ample length labeled wire to run down to the dimmer switch to splice into the dimmer circuit which is the blue/gray wire so enable the illuminated icons and 2 ambient lighting LEDs. Makes install easy and reversible.