One of the LEDs in the center stop lights has burned out on my '96 A6 wagon. Does anybody know if Radio Shack carries the correct LEDs, and if so, what the correct bulb ID is? Thanks! Lee '99 A6 quattro avant (now with ecode allroad xenons) '97 A6 quattro avant (now with OEM TT xenons) '96 A6 quattro avant (now with OEM TT xenons)