I have never heard anybody say a specific size, but someone has a picture. I have been dremeling my A6 markers, just need to get off my lazy butt and rip off the emblems and do it.
BP, to get a just blinker side marker, you just have to splice into the parking light wires in the headlight housing. No relays, just splicing. I have a diagram that someone made, it is the easiest way to do it. Connect the ground and the power and flash away!
