I wired up a sub and amp about a year ago and everything worked fine. Something happened and my sub stopped working. I bought a new amp and sub thinking either could be the problem. I never changed any of the wiring. Everything is still the same besides the amp amd sub. I started up my car and played some music. but now i keep getting feedback. A noise coming from the sub, it wont stop. Any ideas what it could be. below I'll link a video of the exact issue.
