Unknown button on my steering column, help please!

[silverback mike]

Evening all!
I've picked up a cheap subaru legacy outback, bit of a heap buy mechanically good. I don't have an owners handbook. On top of the steering column is a square button. I've no idea what it does
Oh it's an X reg...

thanks in advance folks!

[silverback mike]

I'm not sure nick, it is a square button with a picture of a square on it and when depressed displays a red sticker.....

Hope it's a good Un. It's my new dump runner and dog carrier. Paid peanuts for it so fingers crossed!

[silverback mike]

Nick, you're a gent. That's the little devil, the p has worn off many thanks!!

[silverback mike]

[silverback mike]

These Japanese cars are fantastic, a toaster