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Long story short, I've recently found a C5 cluster out of a junk car that I'm wanting to experiment with. At the very least I'd kind of like to play around with it via some microcontroller stuff... turn lights on/off, make the gauges do stuff, etc. If that works, I might end up trying to do a little surgery to it and try to get at least the tach & speedo into my C4 (though obviously there's a lot of coarse feasibility stuff yet to be done to see if that'd even work).
Anyway, I'm looking for any pinout info folks might have (voltage levels, what position does what, pulses per unit, etc), as well as any additional info that might apply. Anyone wanna help out and either braindump or pass along some pages from the service manual?