Hi all. Maybe someone can help me with a problem. I have a 2016 Ferrari f12 Berlinetta. The car has a JBL system installed. The music was playing disgusting and I wanted to finally change it. I purchased a Focal k2 in the door And put everything else from Audison For this system I bought an amplifier Audison APF 8.9 I had the whole system installed by removing the original speakers and the original amplifier and hooked up a new amplifier and new speakers. It sounds amazing! But the guys ran into a problem! The car doesn't have volume control from the fader knob or the steering wheel. Also, the phone ringer is very quiet. The installers say they need to put an extra DRC from Audison to adjust the volume. Maybe someone has changed the JBL amp and speakers and somehow got the volume control from the OEM. Or is it impossible and I will have to damage the car and put this DRC unit? Image Unavailable, Please Login Image Unavailable, Please Login