12V Bluetooth?

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   Im after a Bluetooth that takes 12V without introducing a buzz when on the same supply as the amp.
When I build my speaker I added an Isolated DC to DC converter to prevent buzz, I used an ebay bluetooth module and removed the battery etc. Now a friend want me to add bluetooth to his car, which is no problem I can do it and I can add voltage protection, isolation etc but I figured there is probably something off the shelf to save faffing about (and the there's no doubt much better quality modules that the one I got)

Has anyone got a module they can recommend? 

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Sm1thson Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 01 February 2014 Location: United Kingdom Status: Offline Points: 13	Post Options Post Reply Quote Sm1thson Report Post Thanks(0) Quote Reply Topic: 12V Bluetooth? Posted: 30 July 2016 at 10:27pm
	Im after a Bluetooth that takes 12V without introducing a buzz when on the same supply as the amp. When I build my speaker I added an Isolated DC to DC converter to prevent buzz, I used an ebay bluetooth module and removed the battery etc. Now a friend want me to add bluetooth to his car, which is no problem I can do it and I can add voltage protection, isolation etc but I figured there is probably something off the shelf to save faffing about (and the there's no doubt much better quality modules that the one I got) Has anyone got a module they can recommend?