I have kepted the stock Headunit which has an adapter for the mobile phone connected to its speaker outputs. this adapter feeds a speaker to line level adapter which in turn connects to my empegs aux in.

The mobile phones mute line connects to both the Radio and the empeg.

When i'm listerning to mp3 on the Empeg, and the phone rings every thing works fine, except at the end of the call the play stays paused.

If i'm listening to the radio when the phone rings. the Radio mutes as expected but the Empeg mutes it output, thus no sound at all. Also when the call ends it switch to the mp3 source.

Hope that explains my setup clearly enough.

R.