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Gasket



Member Since: 30 May 2020
Location: Manchester
Posts: 629

interference/buzzing with Factory Alpine head unit
Finally finished installing a factory bluetooth setup (Alpine CDE-133BT with factory microphone, Alpine-ISO specific harness) and have some weird interference/noise/buzzing coming through.

It only happens when using bluetooth audio (in the background under the music and keeps going when you pause the music - it is repetitive - a buzz with a pulse and sounds electronic.) or when aux-input is selected (though its a different noise, in this case like a woodpecker on 10x speed). There is no interference when using the radio.

I didn't get this with the old Pioneer head unit (though, granted I only ever used it for the radio).

The only things that have changed since then are: 1) fitted the head unit, 2) fitted the factory microphone 3) fitted a loom that correctly connected the head unit to the cars brown/grey ISO plugs: here it is on Amazon: https://www.amazon.co.uk/Cable-Adapter-Rad...amp;sr=8-1 and 4) I have fitted a simple loom made by LR-Connectors that connects the rear speakers into the iso plugs (runs from the empty plug near the clutch into the unused posts in the brown iso plug)


I have tried disconnect and reconnect all the plugs, I have tried disconnecting the aerial and the microphone - with no joy.

There are no LED lamps on the vehicle and there was nothing charging at the time - it still has the factory cigarette socket. The only other thing of note is that there is a Tracker on the car.

Any ideas at all? My next step is to take it to a radio specialist if I can't fix it.
Post #947319 28th Mar 2022 6:20pm
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Rashers



Member Since: 21 Jun 2015
Location: Norfolk
Posts: 3507

United Kingdom 2014 Defender 110 Puma 2.2 USW Corris Grey
Mine buzzes when I have anything plugged into the cigar lighter.

Could also be your mobile phone?

My Satnav also plays havoc with my factory fit Alpine.
Post #947341 28th Mar 2022 8:05pm
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