I’ve had good luck with the old K-line one from bmcables I used so far so I’ll probably get their D-can cable for the e70. X3 wise I’d only be guessing but if their is a year it went to N55 and the 8-speed trans I’d look at that as being a real plus.

__________________
2013 X5 xDrive3.5i Premium
2002 530I Sport Package
2001 X5 4.4i
2001 M3