Originally Posted by snoozee
late 2009 E90 LCI.
mic wire is just normal 2 core wire which i ran from the FZD to the trunk. it might be better to use 2 core wire with shielding as this is what BMW used for the original harness.
You don't know off hand if there's a pin in the MULF plug to attach the shielding to, do you? Or would you just chassis ground it?