Re: Stock Head Unit Tweeter Buzz
sounds like interference or grounding problems. could also be wiring issues.
Trace your steps again and make sure all speakers are wired right and nothing is grounded out.
Also, if your stock speakers are not coaxial, then the sound might have been there the whole time, but your old speakers wherent able to reproduce the tone. If so, then it might also be a headunit problem.
2016 Chevy Cruze LT
OEM stereo, FOCAL-100KRS set passive - active- HAT Imagine I6 / V2 Midbass - sub- Focal 27KX sub, ARC XDI805 channel (1) Alpine-MRD-M1000