Wait, so just to check, you have power to the dash outlet but not both of the ones in the center console? (That's the impression I got from your post.)
If that's the case, they're on separate fuses. Differently rated ones, too (15a vs. 20 a if I remember correctly). I found that out after I kept blowing the dash fuse powering the portable air compressor, but never blew fuses when using the center console ones or the one in the rear.
There are fuse boxes both in the cab and under the hood; have you checked both places?
If the wiring in there hasn't been altered to add some sort of aftermarket accessory, I'd be inclined to think that it would be intact.
Hope this helps.