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Headlight swap: Twin halogen to bi-xenon - Do I need new CECM/BCM? | Page 2 | Ross-Tech Forums
Hid Headlights 10 To 14 Pin Conversion Line Upgrading Halogen Headlights To Xenon Led Headlights Adapter Cable For Audi A1 A3 - Cables, Adapters & Sockets - AliExpress