i have the same car, i restore old BMW's e 30 & e28's, audi sure does like thier cars - info - well good info is real hard to get, u'll need a bentley book / bosch book, big $'s easy on cd , paper harder to find.
lets stay together about info links maybe we can help each other - anyone got a paper book for sale ?
ur issue 1st, i'd replace the elec part of key sw - like bmw they wear out, - auto trans issue - u might have a elec sw on shifter - look at owners manual for a shift lock override. the 95 audi 2.8 auto will be here this am (i got it for my d- inlaw) so i'll ck the trans s/w for u.
any good links or info would be helpfull - other members = thanks sea ya !