How to tune up my 1996 Audi A4 quattro?

My car is in need of a REAL good tune up. What should I look at or change? Im only asking because I do not know of Audi maintenance, specific ones mainly, and I just want some feedback from any long time audi owners. Any info would help! Thanks.How to tune up my 1996 Audi A4 quattro?Replace the spark plugs and wires, replace the fuel filter, air filter, and cabin filter if equipped, change the oil, and filter, run Sea Foam in the tank and in the intake manifold.