So I got my car out of the garage today to give it a quick wash. Switched her off, hit the lock button whilst I got the karcher out. But during jet washing the alarm went off, happened three times, cancelled with the remote. But no obvious cause, all the windows were shut and the car was empty. Any ideas on the cause? Really want to avoid my local stealer. Also found out the 8P's alarm is a lot louder than the old 8L!