shaft412412 Posted July 14, 2007 Report Share Posted July 14, 2007 I have a 2003 Denali with auto headlights. I'm thinking this is affecting the nav screen. Its always on day and even if i manually switch the lights on nothing happens. Do i need a special part? Quote Link to post Share on other sites
gonefishin Posted July 14, 2007 Report Share Posted July 14, 2007 you need to hook up the illumination wire(orange) once that is connected and you turn your lights on the unit will dim Quote Link to post Share on other sites
mvd Posted July 14, 2007 Report Share Posted July 14, 2007 When this wire is connected and you select DAY or DAY/NIGHT the dimmer should be turned of right? Quote Link to post Share on other sites
shaft412412 Posted July 14, 2007 Author Report Share Posted July 14, 2007 Installer hooked up the right wires. Still nothing though Quote Link to post Share on other sites
installthis06 Posted July 14, 2007 Report Share Posted July 14, 2007 This is like the same thread http://avic411.com/forum/viewtopic.php?t=8620 Quote Link to post Share on other sites
hottwhyrd Posted July 14, 2007 Report Share Posted July 14, 2007 for the second time today -------------------------------------------------------------------------------- i think for the right polarity on that truck u gotta go to the bcm. if you pull the under dash off you can see like 5 plugs facing the drivers seat. the wire you want is on the far right plug that only has like 5 wires in it grey/black= illumination the radio plug has an illumination but its not the right polarity so use this Quote Link to post Share on other sites
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