[gallery link="none" columns="1" size="full" ids="68214"] There’s a challenge most purchasing a new-to-them 80s car like our Audi Club Sweepstakes 1985 ur quattro 20V can attest, and that’s the challenge of audio. With a brightly lit and colorful head CD player, our quattro’s audio system looks period incorrect for our car, and we needed a change. For that we turned to Audi’s brand sibling Porsche. Cars of the 80s had both less-than-stellar sound and a nearly universal-sized single-DIN...