Just finished installing my 6019 and 510 units and everything works great....will get pics up soon. But my question is, is there a way to make the radio mute when the back up sensors beep? Like the factory head unit did. Dont remember which wiring harness I used but there were 4 brown wires on it that said mute so I ran all 4 of them to the Radio mute just to see if they would woork with no luck. Any one have any ideas? not a must have but one of the very few things I liked about the factory unit.