Anyone done a nice ICE install on there RS6?

[RS4XS]

Looking to update the sounds in my RS6 avant, dont want a boot full of speakers, been there done that, but want a real punchy system, discreet.

If anyone has done theirs any advice would be good, what speakers fitted etc,

Thanks
Jason

[GarethRS]

I've changed all my speakers to infinity reference 6530's (mine are the older 6510's, but the same size). I've also changed the amp and fitted a active sub. I'm just deciding the nice bit of which head unit, currently keen on the Kenwood double din sat nav range.