After reading bit on here about locking the drivers seat I had a play around today with a bike disc lock. Tried it a few ways and then "sussed it"", the seats can't be moved with the lock in this position. Yes the "scum" can cut through the seat adjuster rail but it will take them time and all that time the alarm will be screaming! Here's hoping it will work! If it does it's a pretty simple cheap-ish fix, the theory is it's big van to tow and not drive...