Breaking the window is the way to go in 50% of all cases, the other way is forcing the lock. Sun roofs or hatches are not a popular place to enter a car. It is possible to protect your windows against breaking using a special foam. However this also makes your car less safe in an accident. After taking out the head unit, the space under the seats and the glove compartment will be entered. Then all possible buttons and levers will be tried to see if the boot will open. When someone passes the car, a thief can hide inside. This is not possible when trying to steal stuff from the boot. Therefore fastening this part of the audio system really helps preventing it from getting stolen ,,,,,,,,,,,,pleaseeeeee dont post any comment