[jharar]

Hi

I have E90 2011 Lci Model with Business sat Nav..

I want to upgrade my speakers to get some decent sound without paying high price..

What are my options, I have heard Alpine does some sort of kit.

Any Idea of price or so is it straight plug and play??

[ctuna]

There is a whole e90 stereo board at this link.
http://www.e90post.com/forums/forumdisplay.php?f=27

It's not cheap to modify one of these correctly.
We don't see the business Nav in the states so
you will need a non US expert to comment on it.
You might want to talk to this guy.
he is local to you .

http://www.e90post.com/forums/showthread.php?t=704363

and FYI

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=343673
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://www.e90post.com/forums/attach...1&d=1209780865
electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...4&d=1278871872