So I'm doing a google search for fenders and come across a very well priced fender but it looks as if it's for an A6 not S6. ETKA shows two numbers: 4A0 821 105 D and 4A0 821 105 F. The note with F states it's for S6 with side turn signals. My car does not have side turn signals. Is the "D" the right one or am I missing something. TIA Tony 96 S6