Where is the battery of audi 6 1997 located, is it at the compartment?

I have a 1997 audi 6 sedan, im looking where the battery of the car is located.|||open the bonnet and right at the top under the air con vents you have the battery under a cover (please note that only mechanics or audi mechanics can take it out as you have to dismantle the entire air vent system|||well in my 1990 audi its under the back seat...but dont take my word for it they could have changed the location in 7 years lol