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      10-21-2020, 02:59 PM   #36
t3ddftw
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Drives: E46 M3
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Quote:
Originally Posted by aten View Post
i was (am) skeptical of that too... after days dealing with groms tech support and suggesting i buy another adapter then that i would need coding i was generally over it.

However, i did find other forum members who had the same coding issue. For models that came prepared for cd changer and but didn’t actually get one installed from factory.
That's absolutely bull. The I-Bus CD Changer protocol is such that the radio "asks" for the CD Changer when the electronics kick on. If the CD Changer responds, the radio adds it as an input on the head unit. I have Business CD radio out of a 2008 for testing, and it behaves this way.
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