Totally spies mission 4

mission 4 is the elite mission , even I'm also stuck in it . its very hard , but with some intelligence you can do it . i think to get rid of the guys in the secret room , you have to burn the electronic sagments so they will go for their cars . but i don't know which gadget will do it . I will try and I'm sure that i will do it ! and when I'm done , i will give the answer here . . .