Yatour Digital MP3 Music CD Changer Adapter USB SD AUX for Volvo HU-series Radio HU-403 HU-555 HU-601 HU-603 HU-611 HU-613 HU-615 HU-655 HU-803 Volvo C70 S40 S60 S80 V40 V70 XC70 Supports MAX 8GB SD/SDHC/MMC Card/U Disk/Card Reader/Hard Disk Digital Music Changer supports direct controls from car radio panel Multi-function steering wheel remains fully operational There can enjoy MP3/WMA in the car with optimum sound quality Supports Volvo HU Radio series except HU-650 & HU-850