[TR] TR4A - Replace ignition lock barrel

[TR3driver at ca.rr.com (Randall)]

> There is a small hole found in the outer cylinder that I 
> suspect, no pun intended here, is the "key".
> But I just don't know what to do and need some advice.

If it works the same as the TR3 switch, you have to insert the key and turn
it to the 'on' position, then push a punch or similar through that hole to
depress the button.  While holding the button depressed, pull on the key and
the cylinder should come out with it.

-- Randall