Plasma Tacho Question ???

Hello together !! As can be seen in the photo I have now given my convertible a plasma speedo. Although was a bit fuzzy and I have to reach the tacho needles again (they still glow too little) but what I have not yet got is an illumination of the mileage indicators. Does one of you have an idea how to get that. For tips I would be danbar MFG Bungi http://img3.fotos-hochladen.net/thumbnail/plasmablauv21ckp6nr_thumb.jpg