^ That cable looks good. I would trust it for the E70. Getting ISTA running can be a bear. I recently got it working on my 3rd attempt. The software packages have gotten better in terms of "ease of install." PM'ing you on possible source.

Your AUC sensor will take care of the A6CF.

9C69 could be tougher. In the E60/E61 there is a wire that gets pinched/frayed inside the center console that causes the symptoms you describe. I went through that. Apparently a problem in multiple chassis, not sure about the E70. Here is a thread mentioning it for the E90: https://www.e90post.com/forums/showthread.php?t=1288626.

Not familiar with your other 3 IHKA70 codes.

I'd start with the AUC sensor and then go from there.

Good luck.

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