[T3] a wiring question

[David Sanderson]

Hi Folks

I have question about the wiring around the ignition switch in my  
notch project. The question involves a couple of wires and I can't  
figure out what they do. My steering column is from a '65 and I am  
blending the wiring harness, or at least parts of it, from a '71  
vintage.

If you look at the wiring diagram for a '63 type 3, like the one shown  
on Dave's site (http://www.hallvw.clara.net/wire64n.htm) the wiring  
around the column is quite straight forward. Power comes to the column  
and ignition switch from the battery to the light switch and the fuse  
block. The black wire takes power to the whole ignition and running  
side through the fuse block. It's very simple and clean.

But if you look at a later vintage, (http://www.hallvw.clara.net/wire66tl.htm 
), you'll see an important difference. Power comes to the ignition  
switch from the battery via the headlight and fuse block as the  
earlier model and the black wire takes power, with ignition on, to the  
fuse and the engine etc. But there are two grey wires that connect to  
each other via a fuse, the 4th from the left. They don't appear to do  
anything. I'm curious about  what they do or whether they were put in  
for some other reason. I've just installed the steering column and am  
loath to take it to chase wires. Can someone tell me what purpose they  
serve?

Oh, and a second question, perhaps a related one, the side marker  
lights get their power from the ignition. I assume that they are meant  
to be running lights that are on all the time the ignition is on. Is  
this correct? They do not appear to be tied into any of the light  
circuits. Perhaps the grey wires are a way to bring power to these  
lights?

hanks in advance.

Dave