[TR] Electric fan connection

[Randall]

> Any ideas re where to connect into the 
> wiring system,

Anywhere along the brown/blue wire will do.  Easiest would probably be at
the A1 terminal on the control box, but if that is too exposed for your
tastes, you could tap into it under the dash.  Might even be a spare
terminal on the ignition switch you could use.  Keep in mind that the fan
draws a good deal of current, so stout wiring and good, strong connections
are essential.

Of course that means you will have to remember to turn the fan off when you
leave the car, it won't stop when the ignition is turned off.  But IMO the
ignition switch won't handle the extra current of the fan for very long.

If you do want the ignition switch to control the fan, then IMO you should
add a relay.  Check out the "How it works" box on this page
http://tinyurl.com/yqcvor
to get an idea of how the relay should be wired.  The "12v from battery"
would be the NU wire; the "to ignition switch" would be the white wire.  You
can put a manual switch in place of the "A/C switch" shown, then add the
coolant temperature switch (thermostat) later if you wish.

Randall