1. 

   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?
   Thanks

    

   wileyxj, Oct 22, 2011

   #1
2. 

   wingless Full Member

   What does your professional installer say?

    

   wingless, Oct 22, 2011

   #2
3. 

   wileyxj New Member

   No longer in business.

    

   wileyxj, Oct 23, 2011

   #3
4. 

   Lazy Eye Full Member

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

    

   Lazy Eye, Oct 28, 2011

   #4

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