Extra Plug under center console?

[gashog]

Perhaps it for the sub control in the back for one of the mach systems?

 

[belzebub2u]

I hooked my gauges up to this wiring harness. there is one 12V constant and one 12V Ignition switch in the harness, the rest i dont know what they do, but they are not live (did not check to see if one was for lights tho)

 

[iskwezm]

Perhaps it for the sub control in the back for one of the mach systems?

nope,thats done through the stereo