What the he$% got rigged here and why?

[Hartge330ci]

So I am installing my radio and accessories today and I find the below pictured valve (?) behind the glove box. I start to wonder why it is spliced into the glove box light wire. I investigate further and looking up near the center dash vent that is supposed to be for the auto climate control I see the wires looked spliced. I feel for the connector on the climate control vent and nothing is there. This valve has a tube going up the pillar on the passenger side and there are two wires going up the pillar that look the same as the ones attached to the valve. I wonder if this is related to my other post with the strange hole in the headliner. So what it looks to me like is someone relocated the temp sensor to the roof. But why would anyone do this?