How can I get the trunk to open on my 99 Jetta Volkswagen

Other than damaging the vehicle .. Remove back seat - them remove trunk latch assembly for repair. Option: ▪️https://repairpal.com/repair-shops▪️

It needs to be opened from the inside with the Rear Seats down. The cover of the trunk is pried near the lower latch and the lock is opened via the movement of the lock on the latch with a tool. This is common when the motor not operatable.