Originally Posted by alexwhittemore
You shouldn't need to replace the headunit, there's got to be a way to get this done. There are early E90 combox cars with no iDrive and bluetooth, you can't possibly be the only one. Do you have a coding setup or did you get someone else to do it?
What do you mean weird 6fl that doesn't connect via the normal blue housing? 6FL implies USB port in the armrest, which connects via a circular cable back to the MULF or Combox - the connector is circular with 4 pins inside oriented in a square.
Someone else did the coding.
I have 6fl (USB in armrest and it works with regular iphone cable) however the connecter at the combox (4 pins oriented in a square) is not being used...nothing is plugged into it. I believe my 6fl is connected by the harness in the back of the combox. I'm basing this on wires i see in certain pin locations of that particular harness.