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DIY: Do It Yourself
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Old 05-06-2005, 05:21 PM   #1
tingbro1
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Tail light wiring for reverse cam

I have an '02 330i sedan.

I'd like to hook up the reverse cam to my NAV tv module. I've got the relay know how to how up the wiring. However, I don't know which wire on the rear tailight harness is hooked up the the reverse light. I believe brown is the ground wire.

Do you any of you know which one is the power wire which triggers the reverse taillight?

Thanks!
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Old 05-07-2005, 09:42 AM   #2
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Bump... anyone? I tried doing a search and found nothing.
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Old 05-07-2005, 10:31 AM   #3
best2d0
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get a meter and test
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Old 05-07-2005, 11:42 AM   #4
tingbro1
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Originally Posted by best2d0
get a meter and test
Looks like that's what I'll have to do.
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Old 05-07-2005, 11:43 AM   #5
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Will you please post here when you find the appropriate wire to tap? Thanks!
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Old 05-08-2005, 11:30 AM   #6
tingbro1
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Found the power lead for the reverse light. On my '02 330i sedan, it's a blue/yellow wire.

I traced it from the plug in the reverse light housing and followed it through the rubber grommet through the trunk lid and into the trunk (where I tapped into it).

Reverse cam works great, automatically goes on when car is in reverse. I'll be posting pics soon of my completed Ice install.
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Old 05-08-2005, 05:53 PM   #7
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Quote:
Originally Posted by tingbro1
Found the power lead for the reverse light. On my '02 330i sedan, it's a blue/yellow wire.

I traced it from the plug in the reverse light housing and followed it through the rubber grommet through the trunk lid and into the trunk (where I tapped into it).

Reverse cam works great, automatically goes on when car is in reverse. I'll be posting pics soon of my completed Ice install.
On an install that I did a last summer, we split the video source: 1 went into the nav and switched the screen to the rear camera when it went in reverse. The other went into the DVD player's secondary source. You could then change to DVD mode and change the source on the DVD player to have your camera displayed anytime you want.
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Old 05-08-2005, 08:02 PM   #8
tingbro1
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Originally Posted by CynicalWry
On an install that I did a last summer, we split the video source: 1 went into the nav and switched the screen to the rear camera when it went in reverse. The other went into the DVD player's secondary source. You could then change to DVD mode and change the source on the DVD player to have your camera displayed anytime you want.
That's a great idea. Must mean your DVD player had a set of secondary inputs (e.g. for video game system)?

Unfortunately, I mounted a 10 disc DVD changer above the NAV computer in the trunk, and it doesn't have 2ndary inputs. I think the other option may be to get an AV switch, and split the camera video into video source 2 and have the DVD player be video source 1.
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Old 05-08-2005, 10:39 PM   #9
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Quote:
Originally Posted by tingbro1
That's a great idea. Must mean your DVD player had a set of secondary inputs (e.g. for video game system)?

Unfortunately, I mounted a 10 disc DVD changer above the NAV computer in the trunk, and it doesn't have 2ndary inputs. I think the other option may be to get an AV switch, and split the camera video into video source 2 and have the DVD player be video source 1.
Yeah, the guy bought a DVD player that has a secondary source, so we used that.
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Old 01-29-2006, 09:26 AM   #10
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tingbro1, did you ever post photos of the camera install? I'm interested in seeing exactly how you wired it. I want to do the same, but I also want to be able to activate the cam with a switch, so I figured I'd need to figure out what kind of relay to use.
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Old 02-19-2006, 12:02 AM   #11
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I did finish my camera install a while ago. I found the instructions on how to wire the relay on the link below (I have a NAV TV module). Relay was $6-7 bucks at Kragen. I tapped into the reverse light wiring from behind the reverse light lamp assembly and wired to the relay post per the instructions.

My camera was a bit big for the keyhole with the grommet inplace. However, I was able to make it fit without drilling by removing the rubber grommet and doing a flush/angle mount which allowed me to point down and towards the center.

Hope this helps.

http://www.tvonnav.com/manuals/TVonN...anual%20v4.pdf
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