first off use stock speaker grill, cause metal will show if you dont, that is a hard screw to get to, best to get a screw-driver to socket conversion thats what i had to use then when i put my new speakers in i just left that screw off... but then agian i upgraded to 6x9's and cut a quater rotation. but it wont hurt to use 2 screws, your not going to push enough bass to rattle them loose. :thumbup: good luck