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Old 11-26-2010, 11:13 PM   #72
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Join Date: Aug 2010
Location: Canada
Posts: 710
My Ride: 02 M3
Originally Posted by thejames View Post
What's the point of using a relay?

Could you not just put the power straight to a switched 12V?

inta: check HERE. Useful info.
So you are not powering the camera off the reverse lamp wiring. Almost all electrical components should be powered by a dedicated fused relay vs direct power. I use a relay also so that I can remotely turn on my reverse camera even when I am driving forward as I have a switch and my reverse light as a signal to activate said relay to turn on camera. Doing this way, I can turn it on whenever I want and have it operate as a normal reverse camera, without having the camera on with ignition.
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