Vag 409 VAG COM 409 Interface VAG-COM 409 Cable is one of the excellent Automotive Car Accessories we have presented to you. This Interface Cable is compatible with certain vehicle models like Seat, Skoda and most Volkswagen and Audi models which were sold worldwide from 1994 to current years. To activate it, you just need to plug in the cable and connect your car and your computer. No DC or alternate power supply needed. The CVFG-A11 cable will not work if your car uses a protocol bus system like VPW, PWM or CAN because there are 3 different protocols (ISO/KWP, VPW and PMW) with same OBD2 connector. Besides, K/L Diagnostic interface cable works on ISO/KWP (Key Word Protocol) that was launched after 1996. Non-OEM product but has great usage. Order one and you will never regret.