Which Sound System?

Quick question? I have an 05' 545i Sport and I have 7 total speakers. Five are in the front passenger compartment area and the other two are in the rear behind the headrests of the backseat. As crazy as this sounds, I don't know if this is the upgraded sound system for that car/yr or not. Does the 7 speaker setup mean I have a "Logic7" upgraded sound system? If someone has knowledge of the systems in the 05 5-series, I'd like to know:

Do I have the upgraded sound system?

How many watt system do I have?

Thanks in advance for your help!

You probably have the standard system, which actually has 10 speakers. 4 in the front, 4 in the back (tweeters and mids are in the same enclosures), and 2 subwoofers under the front seats.

There is a speaker grill in the center of the dash, but it's empty in the standard system.

So...if sound comes out of the front center speaker, do I have the upgraded system? How many watts is the standard? How many watts for the upgraded?

I have a Logic7 in my car, so I can only tell you how I'm able to determine it.

IIRC...go into Idrive and push down on Audio settings, and move all the way over to the Equalizer, Surround Sound settings and it will display Logic7 , that's if you have a Logic7 system.

Otherwise, I'm guessing you have something else besides the Logic7, so narrow it down by that.

If you have L7 you will see that option in iDrive. You can actually choose preset equalizer's such as concert hall, cathedral, etc.

Ok....I don't have L7. Anyone know wattage on this standard system then?

Another easy way to determine if you have Logic 7: speakers in the rear doors...

This may help: http://www.usautoparts.net/bmw/audio/logic7.htm

And this: http://www.musicarnw.com/bmw-sound-s...us-model-year/ , http://www.e90post.com/forums/attach...2&d=1266451970