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      11-25-2012, 04:01 PM   #18
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Drives: F20 M140i
Join Date: Oct 2009
Location: Farnborough, UK

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Quote:
Originally Posted by threerosedale View Post
Hi. I've just posted this against another thread ... but for the sake of spreading the knowledge about I'll repeat here. I've been told the same thing by BMW. I have a new 118d SE with Professional Radio (SA 663) and am told that the Alpine upgrade is not available when they plug my VIN number into their ETK system.

Looks like others are having the same issue. I't's bizarre!

The base system is the Business Radio. As far as I know the Professional just has the addition of the 6.5" iDrive screen. The Business Radio and Professional Radio both have 'Two-way, six-speaker, 4x25W loudspeakers'. So they all have subs under the seat.

My Dealer was telling me that if I had the Business Radio the Alpine upgrade would be compatible. But the Professional is not! BMW UK customer service said that "BMW make small changes to the spec and thats why my particular Professional Radio is not compatible. Appears odd to me that BMW's own installation instructions state that it's compatible and then they make cars that cannot be retrofitted. Am I missing something here?

If you take a look at page 7 of the Installation instructions where it describes the Diplexer. You'll see that connector B4 is specifically designed to be attached to cars with fitted with SA 606, SA 609 and SA 663. Connector B2 is for cars with the Business radio. You'll see this information again on page 12 where it describes the installation in more detail - "Only cars with SA 606, SA 609 or SA 663 Connect branch B4 to the tweeter".
sorry for the thread revival, did you ever get a satisfactory answer on this one ?
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