Nightmare!
Someone almost got my 03 plat WRX back in February. Strangely, it was also at exactly 4.30am!
They broke through my patio doors with large rocks, making a hell of a noise, but scarpered when the alarm went off and I started shouting and turning on lights.
Police reckoned that they thought the house was empty because no curtains were closed. Fortunately they caught them later that night still trying to steal cars, but about about 5 miles away!
Did you contact Tracker about getting it activated? I thought a Tracker was always "ready" and they just had to activate it on their computer system when you paid the subscription?
Hope you get it back. If not, you have the hassle of dealing with Ins Co. and finding a replacement. []