I took my Q3 to fix a small scratch at the rear underneath the taillight. It has been repaired but when i opened the boot which has two compartment boxs one of each side, the right box has a jack and wheel opening tool and the left side has a air compressor and type puncture repair kit. In the left side (puncture repair kit side) there is a loose cable not connected to anything. I am not sure where it belongs to something as i am not been able to find the other end of it

My only concern is weather the guys at the garage has disconnected it while working on the body. I will very much appreciate if anyone knew whats its for and weather it suppose it left like that