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need help figuring out reverse light project details

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Old 02-06-2008, 10:23 PM
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need help figuring out reverse light project details

Ok so first a description of what I want to do:

Since I have dark rear window tint I want to install an extra backup light in the rear rotary accent that I can cue on to help when it's really dark out. I'm looking to double my light output out the back, and to keep it "legal" I won't be hardwiring them into the existing circuit, but instead running the wiring from the circuit thru a relay.

I want to turn one of the dummy buttons by the steering wheel into a push button that temporarily locks the relay closed so that the light comes on and stays on after the button is pushed, but when I take the car out of reverse it turns off and stays off even if I put the car into reverse again. Again, the extra light comes on only after I push the button, this way I avoid attention from cops and it isn't exactly illegal.

So now that i've described it I have a few questions:

1) Is there enough power available to double the amount of light I can put out?
2) What is the voltage and what would be the best lights to use back there?
3) What kind of relay do I need for this?
Old 02-07-2008, 09:11 AM
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You could probably just get away with it by staggering two regular relays, I'm sure there is a special part out there somewhere that does this, but I'm not too big on specialty electrical wiring right now.

But if I was going to do it, I would try and get my hands on an OEM DSC button, then just make a pretty little label on the front, fits right in no mess.

To answer two of your questions

1) yes
2) Wattage? I would go 30-40 watt. I think the foglamps are like 65watt or something just to give you a comparison.
Old 02-07-2008, 09:13 AM
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On the other hand, you can just stick one of those little dome back-up mirrors on the side of your mirror and be done with it.
Old 02-07-2008, 08:25 PM
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dome mirrors are lame and it would be too easy, and I'm trying to find a way to use up those extra buttons that are just sitting there.
Old 02-07-2008, 08:33 PM
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Use LEDs, Two people just posted the rear light in the last few days do a search.
Old 02-07-2008, 09:49 PM
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why would it be illegal just to wire it to your back up light circuits?
Old 02-07-2008, 10:02 PM
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He want to put a flood light in there.
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