Will a set of S4 xenon headlight units (from a 2004 model B6) fit straight into standard A4 B6 2004?
Correct me if I'm wrong; the socket is plug & play and will fit like the current unit and won't need any special plug adaptors?
Part number for S4 unit is 8H0941004BB! My car is 1.9 TDI
Thanks in advance