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Discussion Starter · #1 ·
I have a 1997 M3. The factory-installed radio light died about a year ago, but the reception was still good. Over time, the reception became flaky: Good reception for a while, then reception mixed with static for a while, then several minutes of total silence. I bought an aftermarket 1997 M3 radio and installed it. The radio lights works and I can control the speakers, but I get only static (and barely one or two FM stations.) Any ideas?
 

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Check the antenna circuit - including connections to the antenna amplifier mounted in the rear (C) pillar. Static=poor signal, intermittent fault usually means bad connections or faulty antenna or antenna amplifier.
 

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I Am The Machine
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Aerial signal amplifier is a common failure on these cars.
 

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Discussion Starter · #5 ·
Check the antenna circuit - including connections to the antenna amplifier mounted in the rear (C) pillar. Static=poor signal, intermittent fault usually means bad connections or faulty antenna or antenna amplifier.
Well, I couldn't find anything wrong with the antenna connection to the radio. I also have 12V output on pin 16 of the radio. I also checked both c-pillar amps and didn't find any loose connections or damaged wires. There must be something wrong somewhere, but I can't figure out how (or where) to troubleshoot this! Any ideas would be appreciated.
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