The Sony RMX25 Audio Remote Control is originally supplied with Audio System models: Sony 10600, Sony CDX5090, Sony CDX5100, Sony CDX5290, Sony CDXC410, Sony CDXC610, Sony CDXU80, Sony CDXU8000, Sony MDXC150,

The Sony RMX25 Audio Remote Control is compatible with Audio System models: Sony CDX5270, Sony CDX5272, Sony CDX600DSP, Sony CDXC460, Sony CDXC480, Sony CDXC560, Sony CDXC590, Sony CDXC660, Sony CDXC760, Sony CDXC860 Sony MDX400 Sony XKR100 Sony XRC190 Sony XRC350 Sony XRC450 Sony XRC500 Sony XRC550 Sony XRC720 Sony XRC7200