I'm going with ED on this one. The colours and location look right for dip dim unit. However the ones I've seen are different looking to what you have and looking at the wire colours, I think you may have an early 410.
The only problem is if you have an early 410 the voltage regulator is not built into the alternator and therefore that wiring needs to be kept.
Have you got one of these lurking about.

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Dip-dim unit