Audison has F-150 set up available.
Rockford and maestro have our Ford edge harness.
I am currently working on my Rockford fosgate system.
2013 edge sport with the premium (POS) Sony system.
I was running a R.F. 3.sixty.3 off the factory amp. It has been nothing but headaches. Line cracking, pops, flat sound that curved at higher volume.
I added a DSR1, A FO2 harness, with A-EXT 2 extension (2m). Currently serious issues with the DSR1. I may have a dead unit.
if I could do it all over I would have not installed a stereo in the Ford edge. It was my daily driver for 10 years and the Soundsystem has to be one of the turn offs.
if anyone has a wiring diagram for the 2013 edge with Sony system please post it. I am still looking for the CAM+- signal wires and the path of flow. from head unit to amp.
good luck on the up grade.
as far as subs. You can cut or tap in to the 4 pin sub harness using the yellow and purple pair. And ad a REM off the acc amp turn on. Be warned you will get popping from amp turn on and off