At 09:54 AM 3/19/2010, Ken Lewis wrote:
>A rotary switch would take the least amount of concentration to operate
>while you are driving. They are easier to install than a slider( round hole
>vs. square).

Both excellent points.  Although cheap nibblers like from RS make
rectangular holes much easier than they used to be.  As a kid I
absolutely lusted after a set of Greenlee chassis punches -- octal
and miniature seven and nine pin tube sockets, relay sockets, you
name it.  Then later D-sub and Centronics connectors and such.  Way
too expensive for me though.

Yours,
David