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Black box, filter? on DVD unit power/ign

Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=55660
Printed Date: July 14, 2025 at 12:04 PM


Topic: Black box, filter? on DVD unit power/ign

Posted By: ph4lc0n
Subject: Black box, filter? on DVD unit power/ign
Date Posted: May 13, 2005 at 11:32 AM

I recently installed a DVD player in a customers vehicle and there is a sealed black box that has the 12v/gnd/ign going through it.  The customer brought the truck back saying that the dvd system won't turn on.  I troubleshooted it down to that box.  The ign won't pass through it.  On one side of the box I'll get 12v, and at the same time on the other side of the box I'll only get a ground. 

Is this box some kind of power filter, or what is it?  Should I just bypass the box for now until we can get another harness?

Thanks in advance.



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Adam Marsh
Installer Since Oct /04
Northern BC, Canada
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Replies:

Posted By: auex
Date Posted: May 13, 2005 at 1:33 PM
It is probably a filter, it may also have a fuse in it. It probably wouldn't be a problem bypassing the box for switched but be sure to fuse.

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