Our old family house had low voltage switched lights and a rotary
switch in the master bedroom that could control all these lights.
Trouble shooting was a small nightmare for my Dad! I see your point.
In hindsight....

I should have run a new fused + wire from dash to new back up light.
Even so, not a lot of work to change the relay wiring so it's switched
via    +

No doubt I was relay obsessed. This created more work. OTOH, I wanted
to leave "room" for another back up light and as it turned out, leave
"room" for possibly more loads on the other (socket) branch.

Obviously I wasn't certain about what to do with the live 87a wire.
Taping it and strapping it down seemed hinky to me. I could've
extended it to the relay box and taped the end (but that box is full),
so figured why not use it? A 12 Volt outlet in that location makes
sense even if it's only used for a trouble light. But I can also see
it being useful for a compressor, fan or ?

Don: I was curious about LED back up lights. Thanks for that.

Neil.

On Mon, Feb 18, 2013 at 4:33 AM, Dennis Haynes <d23haynes57@hotmail.com> wrote:

> I really don't see the sense or value to use the NC relay to connect the
> power socket wire. Also, since using just a 10 amp fuse why even bother with
> the relay for the lamp? This can get really difficult to explain for most
> circuits vehicles, home, industry, whatever switches are used to control the
> "ungrounded" side. There are number of reasons why but to start adding
> ground controlled circuits later becomes a troubleshooting nightmare
> especially as more stuff gets added. Think the KISS principle. (Keep it
> stupid simple).
>
> Dennis
>
> -----Original Message-----
> From: neil n [mailto:musomuso@gmail.com]
> Sent: Sunday, February 17, 2013 6:55 PM
> To: Dennis Haynes
> Cc: vanagon@gerry.vanagon.com
> Subject: Re: 12 Volt + Wire Up Rear Pillar? (vent)
>
>..... This relay is controlled via a switched ground

> https://lh6.googleusercontent.com/-NNbtZhVBbRc/USFrqiXmoCI/AAAAAAAAG8g/TBQ_K
> BREv74/s576/Back%2520Up%2520Light%2520Relay%2520%252B%2520Added%2520Circuits
> %2520j.jpg

> Dash
> switch off, relay switch is closed to 87a so thought I'd put the 87a wire to
> good use. The 87a + circuit will power things like trouble light, compressor
> etc. Outlet will be here:
>
> https://lh6.googleusercontent.com/-qPdIzZgxrFY/UR_k7-An-KI/AAAAAAAAG7Q/zuzkW
> dSefEA/s576/12%2520Volt%2520Outlet.jpg

--
Neil n

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