Welcome back (sorry not sure I'd realised you'd left...)
It's just a single multi-plug on the back of the instrument clusters. The instrument clusters are well known for failing, although I honestly don't know exactly what component it is that fails, as they're a single printed circuit board internally.
You can try looking at the eLearn download (see downloads section) that has some wiring diagrams in it, although whether or not that includes exactly what you're looking for I dont know, not got it installed on this laptop.
What exactly about your instrument panel has failed?