How can I get behind the speedo to change the illuminating bulbs of a 1975 2200 SC with a strip speedo. I'm not understanding the Haynes instructions. Have undone 2 screws at the top but it won't come out enough to get my arthritic fingers in. Haynes says something about removing the end finishers which are presumably the square chrome plates, can see how this could be done to get them off, but not how I could get them back on. Anyone used LED's for here?