Additional wiring required for retrofitting the original fog lights for Seat Ibiza 6L Quick installation: approximately 90 minutes. The wiring connects the fog lights to the electrical system controller to connect to the main light switch Scope of delivery: Wiring harness Installation instructions for download Notes: Some vehicles require the electrical system controller to be disabled Check with your Volkswagen dealer if the fog light controller coding (byte 00 bit 0 must be set), blocked at the moment, will work You will still need a 2-stage light switch for the rear fog lights Check with your Volkswagen dealer to determine any additional equipment you may need Please indicate the type of light housing (independent of the NSW part number)