96 A6 Quattro fuel pump

[Kevin Smith]

On a 1996 Audi A6 Quattro Wagon, would the fuel pump make a noticeable 
amount of noise when the key is turned on? I can't remember ever 
noticing it before, but I seem to have a fuel delivery issue with the 
car, and I'm trying to sort it out. I have checked all the obvious fuses 
in the fuse box inside the car and under the hood, but can't find any 
issues there. Is there a relay that I can check, or any hidden 
fuses/fusible links, or anything anyone can suggest? If it is fuel pump, 
how difficult is it to replace on this car? Does the tank have to be 
dropped to do it, like in so many other vehicles?

The car has been sitting for a bit, and the battery was dead, so I 
recharged it and tried to start, but it just cranks forever. I need to 
get it running so I can get the registration taken care of.

Thanks for any hints, tips, tricks you can provide.