Anyone any ideas what this might be?

Sorry for the poor picture, I've cropped it to try and hide the location in case its the tracker. However if it is its in a poorly hidden place, it also doesn't have any aerial or GPS connections so i have no idea what it is.

 

A bomb!

 

could be a motion sensor for the alarm?

 

Maybe blank box insurance use ? From previous owner

 

Is it in the boot, under the parcel shelf? If so, it looks like the filter for a rear heated window radio aerial.

 

When I wanted rear shelf speakers I took the parcel shelf off and found a box like this. I'm sure it's a radio aerial like TimH said, as I have no external aerial on the car. I had to relocate this box further down to fit my speakers as it was situated above the hole where the speakers would go. Looks like you've taken a picture of it from below but if you were to look at it from the other side then you would see a silver sticker with 'Clarion' written on it, I'm sure they make radio componants.

 

i guess thats what it is then,

Scoober how much of a mission was it to speakers in the shelf, the holes seem a pretty standard size, did you have to run the cables to the front? I've not really had a close look but I don't suppose Subaru were nice enough to lay cables for you