So I had a professional sound installer replace the disastrous installation that came with the truck and he thought it could maybe address the TCU issue since he never had an issue before in any other installation he had done. That didn't fix it.
I now have also the pre-collision assist warning going off (and eventually break-checking people on the highway) randomly. Took it to Lebanon Ford instead and... guess what? They say they need to replace the TCU AGAIN and would need to remove my sound installation.
Called my sound installer and he said there is no need to touch the sound wiring apart from disconnecting less than a handful of cables if at all to access the TCU. My service advisor doesn't want to work with my sound installer.
WHAT IN THE WORLD AM I SUPPOSED TO DO? Why are people so square? I understand the liability question, but it would be incredibly helpful if the Ford mechanic would just get on the phone for 5 min with my sound installer and sort it out - maybe it is just unplugging 5 cables to reach the damn TCU. If they figure it has to be disassembled, peace, but at least try.
@FordTechOne any thoughts?