I need to get my 3500 dump inspected and cannot find any information about the alarm they require that notifies operator when the dump bed is raised. It is required as of this year... the new commercial inspection for over 10,000 gvw. http://www.mass.gov/rmv/inspect/commercial_regs.pdf I have searched the sight relentlessly and can find nothing regarding this topic. Any others in my situation? Where can i buy one of these?