I'm removing the factory 6 disc from my 04 f140 fx4 and and the are two connectors in the rear I'm familar with the larger connector on the left but whats in the smaller on one the right?

 

That one is plugged into the audiophile package head unit to power the sub.

 

That's funny? I don't have a rear sub? I don't have the adiophile upgrade, but it was connected to the head unit, there is another connetor that is taped off to the harness that thoght it went to the rear for the sub? if anyone could help me on this it wold be appreciated

 

Well it depends, is it a 10pin or 14pin harness.

 

So you have 3 plugs back there then? or just the 2? They could have pre-wired your truck for it but just never used it. Do you have a pic of it?

 

Tere is onne that is taped of the harness with about 6 wires,one that is large Iknow what it is it has about 25 pins it pug s into the left side of the radio,and thereis one that plugs into the right side do you think it could be and aux input for dvd maybe?