[AT] OT, Reverse Camera

Sat Dec 31 13:02:10 PST 2011

Dick,  what brand, model and year car/truck are you putting it on.  That 
might help.  Someone might know the specifics.

Charlie

-----Original Message----- 
From: Alan Nadeau
Sent: Saturday, December 31, 2011 12:59 PM
To: Antique tractor email discussion group
Subject: Re: [AT] OT, Reverse Camera

Dick,

You're overlooking something.  The reverse lights are at the back of the car
but they have to get switched somewhere that is convenient.  At one time the
RL switch was on the transmission.  Now it is probably somewhere on the
steering column under the dash.  I your new rig, since it is most likely all
electronic(no mechanical shift linkage) it could be anywhere or even a
sub-circuit off whatever triggers reverse in the transmission.  At any rate
there is a wire in there somewhere that either feeds the RL on the vehicle
or triggers a relay which feeds the RL.  It is also possible that the RL are
switched on the ground side which would require a relay that would switch
the camera on when it (the relay) was grounded.  Not hard to do either way
but the first step is to visit your dealer and ask to look over a wiring
schematic.  If you can get your hands on a service manual for a few minutes
you can find out which side of the circuit is getting switched as well as
both the circuit number (will be imprinted on the wire every few inches or
at the connections at the least), the color code of the wires involved and a
"component locator"  which will tell you where to look for things.  It is
also possible, and very easy to rig one manual switch which will allow the
camera to be triggered manually, automatically, or left off at all times.

Here's a link to a wiring diagram for the switching.
http://www.snowplowing-contractors.com/alan_reverse_lights.html

If the system is switched on the hot side follow the left hand drawing with
the camera wired on the wire(blue) marked "new lights".  The camera
shouldn't draw much power so that drawing should work.  If the camera
doesn't have it's own supply connection, and does draw all it's power off
the trigger lead it might be best to wire it using the right hand drawing
where the only current added to the RL circuit is the tiny amount used to
trigger the relay.

----- Original Message ----- 
From: "Dick Day" <ddss at telebeep.com>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Saturday, December 31, 2011 11:06 AM
Subject: Re: [AT] Waaayyyy OT

> That's what I may end up doing.   The reverse lights wire will provide the
> easiest place to find what I need, but they are at the back of the car and
> the connection that ties to it is from the display which is at the dash.
>
> It's a shame cars don't have a punch-down block (used in phone/network
> wiring).  It appears that everything is done with individual harnesses.
>
> Looks like I will run another line next to the shielded video cable from
> the
> back of the car to the front.  I'll make sure it's got an in-line fuse
> that's easy to get to.
>
> Thanks for all of the help.
>
> Dick
>
> --------------------------------------------------
> From: "charlie hill" <charliehill at embarqmail.com>
> Sent: Saturday, December 31, 2011 9:52 AM
> To: "Antique tractor email discussion group"
> <at at lists.antique-tractor.com>
> Subject: Re: [AT] Waaayyyy OT
>
>> Ok I understand now.   How much power does the camera draw?  You may well
>> be
>> able to simply tap the hot wire to one of the back up lights.   I think
>> if
>> it was me that's what I'd try.  The worst that can happen is a blown
>> fuse.
>> You could tap both back up light circuits, run the wires to a central
>> point
>> and tie them together.  That would split the load between the two.
>>
>> -----Original Message----- 
>> From: Dick Day
>> Sent: Saturday, December 31, 2011 10:23 AM
>> To: Antique tractor email discussion group
>> Subject: Re: [AT] Waaayyyy OT
>>
>> Thanks. What I actually need is a lead that only becomes energized when
>> the
>> car is put into reverse.  The reverse fuse circuit is bundled with
>> several
>> other circuits, so unless I can find a lead somewhere under the dash that
>> handles just the reverse lights, I'm pretty sure I'll end up running an
>> extra line. Not a big deal, was just hoping to avoid running a 12v wire
>> from
>> front to back.
>>
>> Thanks
>>
>> Dick
>>
>> --------------------------------------------------
>> From: "charlie hill" <charliehill at embarqmail.com>
>> Sent: Saturday, December 31, 2011 9:04 AM
>> To: "Antique tractor email discussion group"
>> <at at lists.antique-tractor.com>
>> Subject: Re: [AT] Waaayyyy OT
>>
>>> Lots of new vehicles also have fuse boxes in the engine compartment.
>>> You
>>> might find an extra accessory socket there if you look around.   Also
>>> you
>>> could buy a fuse holder and run a wire directly from the battery
>>> terminal
>>> with the fuse inline near the battery.   What ever you do don't mess
>>> with
>>> a
>>> pink wire unless you want to replace your airbags after they deploy.
>>> For
>>> safety sake, disconnect the battery before you do any wiring.
>>>
>>> Charlie
>>>
>>> -----Original Message----- 
>>> From: Dick Day
>>> Sent: Friday, December 30, 2011 2:21 PM
>>> To: Antique tractor email discussion group
>>> Subject: Re: [AT] Waaayyyy OT
>>>
>>> Dan, thanks. I was hoping that was the case. I'll grab a test light and
>>> see.
>>> My back just does not take to that awkward bending like it used to.  I
>>> wish
>>> they could mount those fuse/breaker boxes someplace that was easier to
>>> get
>>> to ;)
>>>
>>> Dick
>>>
>>> --------------------------------------------------
>>> From: "Dan Glass" <dglass at numail.org>
>>> Sent: Friday, December 30, 2011 5:06 AM
>>> To: "Antique tractor email discussion group"
>>> <at at lists.antique-tractor.com>
>>> Subject: Re: [AT] Waaayyyy OT
>>>
>>>> I am not sure on this particular vehicle but on most there is a fuse
>>>> box
>>>> under the dash between the steering column and the door.  It should
>>>> even
>>>> be labeled as the back up lights.  That would be a good place to tap
>>>> in.
>>>>
>>>> On 12/29/2011 10:13 PM, Dick Day wrote:
>>>>> I am about to install a rear-view camera in our '03 Nav.   The
>>>>> display/Monitor at the dash has a lead to connect to the reverse light
>>>>> in
>>>>> the rear of the car. This is what supplies power to the camera when
>>>>> it's
>>>>> in
>>>>> reverse.
>>>>>
>>>>> Does anyone know if there is a place at the dash that I could connect
>>>>> to
>>>>> for
>>>>> this?  Or do I need to run an extra power cable to the rear?
>>>>>
>>>>> If this goes well, I'll add one to our '06 as well.
>>>>>
>>>>> This is such a diverse group of people, I am just curious if anyone
>>>>> has
>>>>> done
>>>>> this before.
>>>>>
>>>>> Thanks
>>>>>
>>>>> Dick
>>>>>
>>>>> _______________________________________________
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