White noise from CD changer as car picks up speed.- help
09-05-2005, 07:57 AM
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White noise from CD changer as car picks up speed.- help
I recently installed a glove box CD changer to go with my Nav Plus. Both the Nav and the changer were purchased from Europe and are to euro specs.
Problem: When the CD changer is playing I can hear a white noise that get louder as the car accelerates. Does anyone know what causes this sound?
Problem: When the CD changer is playing I can hear a white noise that get louder as the car accelerates. Does anyone know what causes this sound?
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09-07-2005, 07:23 AM
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I had this problem on a retrofit Panasonic changer using the Audi bus cable
The problem stems from the feeble mini-ISO connector at the HU end. The left/right signal cables aren't screened all the way into the HU, so at the most critical point (the bit nearest the engine) the very low level audio from the changer/phatbox are exposed to engine interference.
You may want to try connecting an additional short earth strap from the chassis to the HU chassis. In the end I rewired the audio with some quality RCA cables soldered directly onto the PCB inside the HU. A bit extreme I know but it was driving me mad.
You may want to try connecting an additional short earth strap from the chassis to the HU chassis. In the end I rewired the audio with some quality RCA cables soldered directly onto the PCB inside the HU. A bit extreme I know but it was driving me mad.