I have a 07 f150 fx4 supercab that didn't come with a factory sub. I got a factory sub from a 2010 supercrew. Is there any way to make it work? Any help would be awesome thank you in advance.

 

You might have to do some splicing. Here's the 2010 Sub Electrical Diagram:



And Here's the 04-08 Sub Connector from the vehicle's harness under the back seat (Driver side):



2010 Sub ---- 2007 Connector

BN-RD -----------------VT-LB (12V)
BK-YE -----------------BK-OG (Ground)
VT-RD -----------------DG-VT (Remote turn on)
VT-GN -----------------BN-OG (Sub +)
GN-WH ----------------RD-BK (Sub -)