I have a AVIC-Z2 installed in a 2007 Honda Civic. Since installing this unit last year I have the problem with the satellite signal dropping when I am using my cell phone. I have the satellite antenna installed under the dash where the factory antenna goes. My phone is mounted on the dash close to the screen. Does anyone know of a way to amplify the antenna signal or shield it. I did install the adhesive metal plate that came with the unit.

I have a AVIC-Z2 installed in a 2007 Honda Civic. Since installing this unit last year I have the problem with the satellite signal dropping when I am using my cell phone. I have the satellite antenna installed under the dash where the factory antenna goes. My phone is mounted on the dash close to the screen. Does anyone know of a way to amplify the antenna signal or shield it. I did install the adhesive metal plate that came with the unit.

This is known behavior (see bullet point 5 attached). Pioneer's advice is: (Attached)