5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
It depends on if you have DSP or not. I have DSP in my car and it has 12 speakers. I have three in each of the front doors and a tweeter in the rear door and 4 in the rear deck ( 2 of those might be in the door I cant remember)i think.
Do you have a DSP button on your radio display (MID)?.
If you do you should have 2 5 1/4" subs in the read deck also.
I think the 10 speaker system was the standard system in the US cars and in Europe they had a 6 speaker system.
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