[simonchs]

1. which gen of 6WA you want? there are 2 gen of 6WA on F20. i.e. 6WA orange dial in night mode; 6WA2 white dial in night mode.

2. which headunit you're using? you need MOST enabled headunit in case to use with 6WA kombi, and yes, you need wiring MOST fibre to link your kombi with existing MOST loop.

3. for brand new kombi, nothing worries; for used kombi, VIN should be erased, mileage should be erase or lower mileage than your car.