I have 2 questions about my 1997 A4:

1) What is under the black screwed in round cap that is located on the passenger side in the truck beneath the removable carpet???

2) What are the wires that are behind the (wool) carpet wall of the passenger side trunk???

 

I don't know, cut them and find out. J/k

 

i beleive its the emergency gas cover door pully

and i belive your amp is also located there so that might be why theres alot of wires

 

the black circular thing.. is the access to your fuel level sensor

 

oh i thought he was talkin about the side wall of the trunk

 

who knows

 

Access to the fuel pump and the fuel gauge sender unit