Is it possible to retrofit HD audio onto a e60 with sat radio and premium sound?

 

I'm sure it is at a huge cost. But to be honest, I woudn't bother with it. I ordered mine with HD to see what it's like and I would never order it again. There just isn't enough content to make the $500 option for FM on steroids worth it.

 

I suppose it matters where you live and what type of music you like. I know in Boston there are many stations brocasting in HD, some with two channels commercial free. I have not heard it, so I can't comment on the quality, but there seems to be a lot of content in this area.