I have a 1995 BMW 540i with the stock BMW head radio/cd changer controller. The head identifies itself as an "alpine3" (by pushing the "prog" and "-" key simultaneously).
In the trunk I use a BMW-PIO/M converter cable to drive a Pioneer CDX-M30 CD Changer.
I'd like to switch the Pioneer CDX-M30 to an Alpine CHA-S634. Is this possible?
There is a KCA-130B adapter which allows the Alpine CD changer to speak Alpine M-bus.
Is it possible it possible to make the Alpine M-bus compatible with the M-bus from a BMW-PIO cable?
<img src='http://bmw-540i.com/images/540i/540i.jpg' border='0' alt='user posted image' />
<a href='http://www.bmw-540i.com' target='_blank'>My BMW 540i website</a>