1) Is there more than one shade of metallic black that the 8L was available in? What are the names of the different blacks? 2) The 1.6 (non-SE) A3 comes with a radio/cassette player. Can I fit a cd tuner/headunit using a DIN adaptor? If so where can I buy tailored DIN adaptor plates? Is it just a case of removing the radio/cassette player and inserting the DIN adaptor then installing the headunit? Or will I have to buy one of those 'double DIN' tuners?