How do I unlock power assisted trunk lock to change the battery? When I hook up cables from another vehicle the alarm goes on. I've tried shutting all the doors and turning the driver side lock with the key a few times, turning the ignition a few times and the alarm still stays on. The lock on the trunk wont budge. There is no trunk release switch inside the car and I was told that I have to tear out the back seats to get to the trunk. Is there another way?