Where can I find the Chassis marking on our 2008 Burstner Aviano i650. We can see the two plates with the weights but the tester wants to see the chassis marking. I have checked the manual and it said the internal wheelhouse on passengers side. We don't have cab doors. Only the one door behind the drivers seat. It is a right hand drive. We checked behind the panel on the passenger side but nothing there. Did anybody else have this issue. Thanks