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Performance MP3 > A-Class (W169) 2004-2008 > GROM-MST4 Android iPhone for Mercedes 05-08 Optical Fiber, Bluetooth optional
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Bluetooth Adapter AUX Audio Radio Music Cable Fit For Volvo V50 S60 S70 C70 V70 | eBay
Car Bluetooth Module AUX IN Audio adapter for For Volvo C30 S40 V40 V50 S60 S70 C70 V70 XC70 S80 XÇ90|Cables, Adapters & Sockets| - AliExpress
Bluetooth Adapter Audio AUX IN Cable for Volvo C30/S40/V40/V50/S60/S70/C70/XC90 With AUX Button|Speaker Line| - AliExpress
14Pin Car Bluetooth Adapter Car Radio Stereo Music Aux Cable Adapter For VOLVO C30 C70 S40 S60 S70 V40 V50|Bluetooth Car Kit| - AliExpress
After years "integrated" bluetooth @ Volvo V50 : r/Volvo
Bluetooth module VOLVO V50, S40, C30, C70, XC90 from JustTech on Tindie
MOST Bluetooth Adapter for Volvo C30 C70 V40 V80 XC90 XC70 – Mr12Volt Car Interface
S40 (New) General : - single DIN radio? - Volvo Owners Club Forum