Originally Posted by KenH
I am embarrarassed to say that you are 100% correct. I hadn't noticed in when I looked before. Sorry for misleading you.
The good news (for me) is that the wires going into the lower box seem to be exactly the same colors as the bunch of spare cables sitting in the back of my X5 (to which I want to add 6FL).
What's the part# of your mulf2-high?