Volvo C30 2004 - 2013. Volvo OEM Original Radios Installed with Aux option and AUX button. Volvo C70 2004 - 2013. Volvo S40 2004 - 2013. Volvo V50 2004 - 2013. Volvo XC90 2004 - 2013. The adapters connects to the original head unit via the CD changer port and tricks the unit into believing it is playing a CD changer, whilst really playing the audio from another sources.
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