I've got a thatcham 1 alarm on my mk3 with plug imobiliser, with the batery doesn't work. Now wen nedd to start the car the imobiliser needs to be removed and reinserted, then dash will light up. That's fine, when I lock the doors with key central locking will work two doors but not boot, the motor makes a noise at the boot but doesn't lock(and key doesn't fit boot either) but from locking doors for maybe 3\4. Seconds the hazard lights flash!! Don't understand why! And first time I been to car for few days today I opened boot and hazards flash for same time but no noise from alarm!! Do I need an auto spark to look at this?