Crackling and feedback coming thru speakers

Discussion in 'Automotive Electrical' started by wileyxj, Oct 22, 2011.

  1. wileyxj

    wileyxj New Member

    I have a 93 Lincoln Mark V111.A loud crackling and feedback from different buzzers is coming from speakers.(stops when buzzers quit,however crackling continues)Began shortly after aftermarket radio was professionally installed.Also,replacement power antenna will not function.I have tested antenna on a 12v battery and it does operate.If it ground related how to I begin troubleshooting?
  2. wingless

    wingless Full Member

    What does your professional installer say?
  3. wileyxj

    wileyxj New Member

    No longer in business.
  4. Lazy Eye

    Lazy Eye Full Member

    Do you have any amps hooked up? Try re-grounding the head unit