Sprinter chassis fuse block under dash.

[dmcb1]

I am again asking for help on this. I have no power to the slideout. I have checked every fuse except the under dash fuses which I simply cannot reach. To big, to old. I have all wiring diagrams but no mention of the slideouts. I have the slideout diagram but it goes to a pig tail and the other end of that is what I seek. I think the only place left is the fuses under the dash on the drivers side. I cannot check them with a simple test light because the little ends that are exposed for this on most fuses are covered over making it impossible. The only solution is to somehow remove the fuse blocks so I can get to them. Any one done this?