I installed my Pioneer head unit and noticed that there is an extra plug on the factory harness. Every thing seems to work fine but i unplug it from the factory cd player. What is/was it for?

Its the square one on the right.


Thanks

 

Subwoofer hookups, disc changer hookups, Sirius radio hookups, steering wheel control wire, etc... are all in those cables. So if you had those factory options, they would be hooked up through there.

 

On my truck it is for the factory dvd setup.

 

I dont think i have any of those options...guess i dont need it. Thanks for the replys.

 

just like they said above, its no big deal. its just the harness for any of the other goodies. If you ever do an Indash nav...your speed sense wire is in there.