I am trying to replace the low beam bulbs on my XK8, but I'm having trouble releasing the spring clips that hold them in. I'm sure I'm making it more difficult than it really is, but I can't seem to get them loose. I tried to move them to the sides, but that is not working. The manuals just say release the spring clips. Any help would be very appreciated. Also, where do most of you buy your parts? Thanks.