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#1 (permalink) Old 03-16-2009, 11:29 AM
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replace a business unit with a nav unit

hi all im new to this site and bmws, just took ownership of a v reg 328i se. I have a business unit installed with a tape deck but also have a navigation unit with what looks like a cd player in the boot. Am i able to change the business to the navigation, and where would my heating, a/c controls unit go. also where will i find the code for the stereo...thanks for any help

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#2 (permalink) Old 03-16-2009, 01:10 PM
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E46 328i, correct?

Check out this thread on E46fanatics and let us know of any other questions that come up:

OEM Navigation retrofit guide - E46Fanatics

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#3 (permalink) Old 03-24-2009, 12:22 PM
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ok think ill pass on the nav unit.....thaught it would be a direct swap....does the business unit come with a key code incase i remove it...and where could i ifnd it...ta

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#4 (permalink) Old 03-24-2009, 07:47 PM
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they should have a code. You might check the owners manual, a lot of previous owners write that stuff down. If not, you may have to go to the dealer and they can get it for you. The numbers they will need, along with your VIN, will be a couple numbers on top of the radio.



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