[169mph]

My path forward depends on what's causing the issue I have now. I'm trying to collect as much info as I can to help make that decision.

Yes, I understand that ford harness from 99-04 mustang would plug into the MS3. I preface this by saying I've never worked on any car electrical systems and prefer not to rerun a new wiring harness. Is it possible to cut the existing connectors and replace them with the new or used harness connectors? Thanks for the help.