Can anyone here give me some info on the cellphone pre-wiring on the LX450? (not sure if this was available on the Landcruiser). Some questions: - How did the cellphone system work? Was it patched into the stereo and did it mute the stereo when the phone was in use? - Where can I find pinout descriptions for the cellphone wiring? I realize this is an old system for use with analog cellphones, but I am looking to patch something else into it so that's why I need the info.