Hey fellas,
I'm new here, I dunno if anyone is still interested in this thread, but I thought I'd have a go at guessing what these plugs are anyway, with the help of my trusty u13 workshop manuals.
So far I think I've worked the one out in the 2nd pic that is found near the consult plug. The manual says its for the "A.S.C.D control unit", which is Automatic Speed Control Device, the cruise control.
As for the other 2 white ones, I'm not sure, maybe if you tell me where they are located exactly I'll be able to work it out