[goodygats]

Originally Posted by smass

E series combox have a model number of BN2000 on the sticker. An F series combox, which is BN2010 is cheaper on ebay, will NOT work in an E series.

Below is a link to one I am selling. It includes the 2 part wiring plug needed for a retrofit using the "move the pins to a new connector" method. This is what I have done of 5 cars now as it is the lowest cost.
https://www.ebay.com/itm/254626622974

If you don't want to move the 10 pins, you can get an adapter. This auction also includes a fiber terminator that can be used when switching from 2 to 1 fiber devices (they are in series). See link below.
https://www.ebay.com/itm/BMW-COMBOX-...h/264558437825

Post a picture of what is in your trunk under the floor. I am pretty sure you have 2 boxes stacked on top of each other now. Based on this, I can send you wiring charts that show which pins to move. They easily slide out of the connector and into the new one. And if you have 2 boxes and switch to combox, you need to terminate or re-patch the fiber which is in series.

Once physically installed, you will need a local coder, or a cable/pc/remote coding session to do the minimal coding to tell your car a combox has been installed.

Photos attached