Out of state for a couple of days so I didn't see the questions. A couple of things I can answer. One is that VDO makes the speedo and from what I have found isn't interested in selling any parts for them . As to soldering those ribbon cables have aluminum in them that can't be soldered and that would also melt the plastic. Getting any thing else to stick to the glass plates might be real tricky. I repainted the ends with a silver paint form a conductive pen. That more or less restored the ends. One of the cables has about 16 connectors and the other one has about 8. Jerry