ive done this, actually im about to do this again, so if you want pictures in a step by step
it gets tricky for sure, i hope u got the right size, 9004-SU
its also in the manual, but u gotta give me a week, since i only work on my car on the weekends
YOU DONT HAVE TO REMOVE ENTIRE HEADLIGHT to change a bulb
so yea, in short
there is a twist cover behind the headlights, you kinda have to reach in, and twist it off, kinda need flexible hands
then u can pull out the connection that supplies power to headlight bulbs
finally, your bulbs are stuck in like in a rubber seal type deal, so now just pull it out and replace
kinda hard to explain without pictures