peet

I've been thinking about this... for those of us that don't have a factory phone setup, is there any way to trick the car into thinking that one is installed?

This way, we could click the phone off hook to mute radio, then phone on hook to unmute.

I am handy with electronics so if anyone with insight can let me know how the system knows of the phone that'd be helpful.

P

vadim

That would most likely require programming, not soldering. And I doubt MB would be willing to release their proprietary source codes any time soon...

lars

From the spec sheet of the Audio 10, posted by Lockbuster on a different thread:

"Telephone Mute: Low active signal < 2 Volt."

Now I wonder if that means that the the voltage to the radio drops to <2 volts, or maybe does the telephone send a low voltage signal to the radio to mute it? Would it be feasible to reduce the voltage to the radio?

vadim

There is a "radio mute" input on the head unit which is used by the telephone system. That's the way it's done on many head units sold outside the US (I've never seen this on US-specced ones). Years ago I helped one of my friends install a Sony head unit which had such input.

That unit also had dual color illumination (amber and green) that could be selected via a menu. That was neat...

yacoub

Agree