I dont know whats up with my stereo. I can only get about 2-3 good radio stations in a city and even only 1 when i travel. When i scan, hardly anything is found! Is there something wrong with my transmitter/antenna...I need some help...and I'm not about to go to the dealer! Please...any suggestions what it could be?
I have the same problem guys. Stock stereo, was fine for a few years, then started to have buzzing / ignition noise and somewhat bad reception, now the buzzing is gone but the reception has gotten worse.
I had my car in the shop for a week and had a rental. The same stations I can't get more then 25 miles from home come in clear up to 100+ miles away when I drove from LA to San Diego.
I will do some looking around in the trunk to see if I can find out where the existing part is and if that is it.
The Dealer charged me $145 to tell me my antenna booster is bad, and wanted another $345 to fix it. Highway Robbery! They tell me this now after I had them check it twice when under warranty and they said they couldn't find any problem.
I determined that it is the diversity antenna that's bad in my car.
If I remove it, and simply put a length of wire into one of the coax connectors running back to the radio, the reception comes back.
The unit is located behind a trim panel that runs across the cabin just above the rear window. It snaps off. You'll see a black rectangular box clipped to the rear window, and 3 coax connectors. Two are for antennas and one is a data/power wire. The radio sends signals to the amplifier to switch between the 2 antennas, and then chooses whichever one gives the best signal. It is not a simple "antenna booster", although depending on where you're located, a simple booster might work.
Apparently, a common problem is that the rubber that encases the electronics crack and damages the board. Mine has the cracks. I carefully peeled back some of the rubber and found at least one surface-mount component had been pulled apart by the shrinkage of the rubber. But that rubber is impossible to remove without damaging more parts. I design and build circuit boards, so I could repair it if I had a schematic.
Nhouk- That is not the part on a U.S. '05 A4. Here are pictures of the diversity antenna amp from my car. Its about 12 x 2 x .5 inches. You can see the crack in the black rubber casing near the 3 coax connectors. The part costs a couple hundred dollars from a dealer, and I have not been able to find one online.
I'm prepared to solder in new surface mount components if I could identify the proper parts. Also, its VERY difficult to remove the rubber backing without pulling more parts off the PCB.
That's why I was curious about Badger61's "easy fix"... unless he just mean it was easy to replace the unit (which it is, but very expensive).
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