Originally Posted by 04_xlt_4.0_4x4
yea the red should be your acc wire... the best way to test it is this.... get a volt meter, find a solid groung and hold the black with from the volt meter to it and grab the red from the volt meter and touch an exposed piece of the yellow with the truck off. if it reads something other than "0" then its a hot. try the red one and it should read "0" then turn the key and try it again and it should read 12 or 13 and thats your acc wire. another thig did you just cuz off the cig plun from the gps wire???
i dont have a volt meter here at school. something i need to invest in sometime though, just not now.
you think i would be safe trying the red and black wire. how does it work, it gets constant power as well as switched power, constant through the yellow and only when running through the red?
i picked up a little two cigarette lighter unit and wired it in and plugged gps into it. then tucked it behind the dash. i plan on using the other one for cell phone charger with a springy cord running out near the airbag switch so i dont need to plug an ugly phone charger into my dash