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
Pioneer DD 2700BS ? , JBL MS8 all active , ARC XDI805 channel, FOCAL-100KRS set - active- JBL 2118 Midbass - sub- Pair of Sundown SD3-12 D2 in 2.6 cubic feet tuned to 27hz., (1) Alpine-MRD-M1000