About the 2010 CD/USB receiver firmware updated
Different versions of firmware are used for different model groups. Confirm the model group before proceeding to the download page.
Group A
KDC-4047U
KDC-4047UGY
KDC-4047UM
KDC-414U
KDC-414UM
KDC-4547U
KDC-BT40U
KDC-BT645U
KDC-HD545U
KDC-MP245U
KDC-MP345U
KDC-U3046
KDC-U346
KDC-U4046
KDC-U446
KDC-U5046
KDC-U546BT
Group B
KIV-700
KIV-BT900
I-K99
