I'm looking into having a board house Make the PCB so that I'll have enough for anyone who's interested.
I3atl, I'm not sure what you mean by
Does the module change the functionality of any of the steering wheel buttons?".
>> If you vo code your i3 to enable traffic jam assist (I'll provide instructions with the module), the "increase cruise control distance" button becomes the traffic jam enable and the "decrease cruise control distance" will cycle through the distances (going from 4, 3, 2, 1, 4, 3, etc... car spaces).
I'd ballpark the price around $300 for the module, fuse tap, wiring, instructions, etc..
For those of you without esys, I'm going to try and see if I can enable TJA through bimmercode only. I'm also going to try to see if I can create a TJA-specific obd connector that will code your car without you having to do it yourself (long shot but "technically" possible).
Videos and photos to come tomorrow.
Happy Labor Day!