Rare factory Pioneer subwoofer?

[97MarkVIII]

I found a 8" Pioneer sub out of an Expedition today.It has the same frame and part number F75F-18808-CC It also has the screw hole on back of the magnet.Anyone see this sub before?.

I have a 97 Mountaineer with the JBL and gonna use the 98+ sub enclosure.Is the stock amp wiring harness long enough to relocate the amps under the back seat?.

 

[toypaseo]

I have never seen one.

I am guessing it's a re-cone using the Pioneer cone... but I wonder why go through all that work when there are replacement subs that would drop right in. Regardless, it's an interesting piece.

 

[97MarkVIII]

Hooked it up today and it sounds good.The wiring harness runs right under the back seat so relocating the amps is no problem.But I forgot to plug the antenna back in and when I did it sparked on the main amp and the radio shut off then came back on.Now the radio lights are dimming with the bass.So either I damage the amp/head unit or maybe a ground issue?.Why would the antenna wire spark? and the only grounds I see are on the plate for the main amp.Even the bottom preset buttons were flashing with the bass but that seems to stopped now.It's just the display that's dimming now.