Mine is a standard fit from VW , and that is mounted on the front of the boot space against the metal work . [Proper pain it is as well ]
Mine was mounted there! Stupid place, now that it's gone i've got a great big hole in my boot carpet!
In my previous mk3 i just screwed it onto the back of the rear passenger seat. Never had any problems with it, but then i never carried much stuff in my boot.
