I've got the 19" Proteo wheels on my 2015 SQ4. I've been searching for wheel locks. Maserati offers a Security stud bolt kit part number 940000358 that is for new QP and Ghibli wheels. The issue I find is that many sellers (Maserati of Cincinaati and Continental Auto Sports as an example) state that this kit is not suitable for Proteo wheels. What are you using? Thank you for your help!