Your talking crap. This is an interface that hooks into ibus to give steering wheel control and access to 6 iPod playlists from headunit numbered buttons. It also charges early gen units and later gen with inline adaptor. About £170 from dealer supllied or over £300 fitted. It's a half hour job with full instructions supplied for anyone half decent at DIY.
just letting you know I've sent a pm, only doing it on here as i'm a newbie and its the 1st pm sent so if you haven't received it let me know, i might have done something wrong.