The obvious test is turn it up and if it sounds crap, it is the base system
Otherwise check the door next to the wing mirror. Is there a tweeter there? (not the midrange speaker in the door, the tweeter next to the mirror).
Next check the centre-top of the dash between the air-vents. Is there a centre speaker there?
If you have the centre speaker, then you have the Harmon Kardon aka Logic 7 system.
If you have tweeters but no centre speaker, you have the HiFi system.
If you have no tweeters plus it sounds crap, you have the base system.
Quote:
Originally Posted by perth335i
I'm not sure what sound system is in my car, but I'm more than happy with it.
I wonder if it is different to your stock sound system.
Don't BMW use HarmonKardon as an upgrade??
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BTW does your 335i have iDrive/Nav?