Sometimes you can remove the back seat and access it that way.
I normally turn the key and the starter turns the motor... check complete.
how do you open gas and trunk lids when button will not work or trunk key
2010 Aveo can't get trunk to work with key,lever,or emergency lever.
The quick way to check is when you turn the key to the on position, you will see abs as one of the check lights.
If you take off the passenger door panel, you will see, on the locking mechanism, a code to make a new key for your car. The ignition key and trunk key will be the same (unless the 90 is different from the 91, which I have) and a dealership or well-equipped locksmith can cut you a new key with the code.
With the key.
Call AAA.
crowbar.
you can get a new trunk button as long as its unlocked you7 can plug it in and it will work
Key or remove the rear seats for access
replace the comfort control module Audi tt in trunk
Use the correct key. It is obvious you are not using the correct key or it would open. If you cannot find the right key, then call a locksmith.