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Turn-on lead also turns on antenna amplifier... (archive)

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Posted by ///M ike on October 03, 2000 at 16:52:52:

In Reply to: Stereo: Poor radio reception w/Aftermarket Radio posted by 95 M3, 70K miles on October 03, 2000 at 15:56:41:

which is located on the driver's side C-pillar. without 12v to this box the diversity tuning box isn't awake. of course, since you have an aftermarket radio, chances are you're not taking advantage of the diversity system anyway, so reception will never be great, but without waking up the antenna module it will be essentially nil.

ask me how i know.

I recently decided to upgrade the stereo in my E36 M3 (95). My plan was to do this in two stages. First replace the head unit. Then the second stage was to replace the speakers/amps. Anyway, stage one (head unit) was done about 2 months ago. Radio reception was great.

About 2 weeks, ago I proceeded with stage 2. I replaced the speakers and amplifier. Now I get really poor radio reception. There is still a chance it's the antennea connection, but I have checked it twice.

Does the stock amplifier need to be powered on for decent radio reception? Is there some sort of booster in the stock amp?

Any ideas?


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