i bought the bulbs and i saw one screw at the top to but i dont think thats it i kept screwing and screwing and nothing was happening it has a spring on it so i think its for adjustment....ended up stripping those already stripped screws....how do i replace the bulbs

 

From the back. I forget if you have to get under the car or if you need to squeeze your hand through the grill.

 

if you undo the screw you're talking about at the top of the light, the light will flip down and you can reach the bulb through the grille.