[6pack] dip switch and electrical question

[oliver]

first - I just noticed that apparently the car once had a rubber cover for the
floor mounted dip switch (72 TR6)?

its listed in moss 20 542-135  $29.95 RUBBER CAP, dip switch, which is more
than the dip switch!!!!  I wonder if the new dip switch includes a cap <grin>

anyone found a less expensive replacement?

and - after trying to match wire colors unsuccessfully from my diagram, could
someone tell me what these two items are?

http://www.ranteer.com/misc_2/

I think one is the voltage regulator and the other a relay?  which is which?
and relay for what?

thanks!