Upgrades and Aftermarket - GeneralUpgrading and adding aftermarket equipment to your 1999-2007 Super Duty. Please confine discussion of topics in this forum to those items that are not engine-specific.
Not sure if this is the correct forum, but is there factory wiring in the back somewhere to wire in the third brake light, and aux interior light on my new used topper?
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2002 F-350 C/C SB 7.3l PSD - XLT Mod's - SCMT set to Tow Safe, K&N Filter - Foil Delete - straight pipe
I just taped into my left rear brake and running lights for brake and interior lights. I just have to remember to turn on the running lights for the interior light when I want it
3rd brake light wire is light green in color and is approx 3" long and taped to a square grey connector between the bumper and spare tire. Should have a small piece of heat shrink tubing on the end of it.
Might try the orange wire (I think) in the trailer plug. I think that's the battery charging circuit when pulling a trailer and should be 12v positive.
__________________ LED running lights below doors for turn signals, marker lights, and courtesy lights from JadSolutions.com
FOKISD (Ford, Ohio, Kentucky, Indiana, Super Duty Club), Charter Member.
2001 F-350, PSD, 4X4, True Blue, 152 WB, SRW, Auto Trans, Manual Hubs, PMT3, Off Road Package, AIC, Heated Excursion Tow Mirrors w/cut off switch, Extang Tonneau Cover, Westin Step Bars, Lund Bug Shield, Nifty floor mats, Custom rear bumper/w fog reverse lights & 3rd brake light, LED running lights below doors, Poron USA reverse backup sensors.
"It's mine,ALLLLL mine, (Till Andrea wants to drive it)"
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DWNRIGR</div><div class="ubbcode-body">Not sure if this is the correct forum, but is there factory wiring in the back somewhere to wire in the third brake light, and aux interior light on my new used topper?
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I also used the tail light wire for the interior dome light, that way there is no chance of the light being left on.
As far as the 3rd brake light, use the green wire down by the spare tire as noted above. If you use the brake light wire down at the tail light lens, you will have your 3rd brake light flashing when you turn on that paticular brake/blinker that you tapped into sine the brake and turn signal use the same line.
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LED running lights below doors for turn signals, marker lights, and courtesy lights from 
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