The outer housing screws into the inner glove box door frame & then the lock slides through the door into the out lock housing . there is a retainer tab near the key head if you push it down & slide the key in the tab stays down then insert the lock into the housing & remove the key & the tab pops up holding the lock cyl in place , to remove it again the cylinder needs to be in the locked position use a paper clip or jewellers screwdriver to depress the retainer while sliding the key in & the cylinder can be removed again .
