BMW 3-Series (E90 E92) Forum - View Single Post

Tierfreund · 06-09-2005, 01:43 AM

Well good luck.

You can not route the sound through aux-in because you cannot tell the radio to automatically switch to aux when a call comes. And there´s no mute in on the radio because the factory phone systems send that info via CAN-BUS. There isn´t even an ignition lead on the radio (that you could cut with a relay when a call comes in), since the radio gets the info of ignition on/off via CAN-BUS as well. Next thought would be to cut the speaker wires with relays, but on 10 speakers, that would be quite a drag. So I´d say: Time for a professional install (if you can find a real pro that won´t chop up your E90 badly)

06-09-2005, 01:43 AM	#2
Tierfreund Major 21 Rep 1,002 Posts Drives: E90 330i Join Date: Apr 2005 Location: Germany iTrader: (0)	Well good luck. You can not route the sound through aux-in because you cannot tell the radio to automatically switch to aux when a call comes. And there´s no mute in on the radio because the factory phone systems send that info via CAN-BUS. There isn´t even an ignition lead on the radio (that you could cut with a relay when a call comes in), since the radio gets the info of ignition on/off via CAN-BUS as well. Next thought would be to cut the speaker wires with relays, but on 10 speakers, that would be quite a drag. So I´d say: Time for a professional install (if you can find a real pro that won´t chop up your E90 badly)
	Appreciate 0 Quote