Test with a different AUX cable; a damaged or low-quality cable can cause buzzing,,, may be Ground Loop Issue,,, or Dust or debris in the AUX port can cause poor connections. Gently clean it using a toothpick or a small amount of isopropy l alcohol or WD-40 on a cotton swab
Is the 4 big blck in amplifier boatd is capasitor or not?
No those are coils
how to fix buzzing sound when connected to aux? bluetooth no problem.. only when aux it keeps buzzing..
Test with a different AUX cable; a damaged or low-quality cable can cause buzzing,,, may be Ground Loop Issue,,, or Dust or debris in the AUX port can cause poor connections. Gently clean it using a toothpick or a small amount of isopropy l alcohol or WD-40 on a cotton swab