The process is manual and requires the owner of the dealership to commit to the purchase in which case it is non-refundable. It is not part of the regular order process and requires intervention by supervisors. I suggest you have the option codes and give them to the sales manager in advance too.

Ultimately, it depends on your personal relationship with your dealer and whether or not they are willing or even know how to start the process.

EPS is a excellent car audio system. It is extremely detailed and has excellent clarity and separation. In fact, you may hear sounds/instruments you didn't know were in the recording. Having said that, because it is that detailed, GARBAGE IN _ GARBAGE OUT. Don't expect SAT, FM, lossy music to sound great. It will sound good. Lossless copies and cd's will sound great depending on the quality of the cd itself. I use a 240gb usb hard drive and have it filled with hundreds of cd's all in WMA lossless format. Depending on the cd, the sound ranges from very good to superb.

It's not a perfect system in that it may not be compleltey flat or have bass that would shake your neighbor's windows, but it's really damn good.

I'm an audiophile to the n'th degree since one of my hobbies is to design home theaters. In other words, I have what most would call a reference system and can compare the same music directly.

I cannot comapre it to premium sound since I never heard it. BTW, EPS in the X5 sounds a little better than EPS in my 335d probably because of the interior volume.