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Old 12-12-2009, 10:33 AM   #16
Registered User
Join Date: Jan 2005
Location: Belgium
Posts: 33
My Ride: E46 convertible

This is just what i was looking for, I have an e46 with sat nav system but I think the connections are the same on the BM54 radio module. I need to do this this way because the BM54 has no speaker output and thus a connects2cable wil give the wrong signal to the output of the radio

But why couldn't you do this with a relay, if you buy one with a normally closed contact and connect that to youre tel mute the contact will close when the mute drops to 0V and so drops the relay, then you could send a 12V signal to that normally closed contact.
gms is offline   Reply With Quote