This is for anyone who has an ignition key and a separate key for top box. If you remove the barrel lock body from your top box and take it to a locksmith along with your ignition key they can rearrange the tumblers to match your ignition key so it can open your top box. There fore one key less on your key chain. I did this many years ago,very convenient!IMG_3780.JPG Undo the hexagonal nut shown in the photo and manoeuvre the whole barrel out.
That is a good idea Robert, I have two keys and it is such a pain. I will definitely look into doing this at some stage....:)