It's really not that hard to seat the bulbs and YES it does make sense if you actually look at how they're seated.

Look at the bulb. See the little notch at the bottom? IMG_0047.jpg

You have to align this notch with the slot at the bottom of the headlight bulb housing. Then it goes in very very deep and fits perfect.

IMG_0046.jpg


Once you have an understanding of how the bulb is supposed to go in, it's really, really easy. But if you just pull the bulb out and put it back in blindly, yeah, its not going to be seated correctly and your lighting will suck.

BTW for the regular bulbs it does not matter what ends of the plug go on to the bulb.