Very quick question. What are the fitments for the interior bulbs in the A3. I know 2 of the 6 bulbs are 42mm festoon. What are the other 4 bulbs, the base is about 10mm. This is to upgrade the inerior bulbs to a pure white led bulbs, they consume less power, emit no heat, and give a pure white light instead of that naff looking yellow light. Oh, if it helps i do have the interior lighting pack.