T2av 2 pin connector carrying leads B415 and B421, black, on right A pillar, for satellite radio preparation
B415 ORG/VIO Infotainment CAN bus high, Radio connector T16g/9, Satellite Radio connector T8t/2, Amplifier pin 6
B421 ORG/BRN infotainment CAN bus low, Radio connector T16g/10, Satellite Radio connector T8t/1, Amplifier pin 5

638 Earth point, right A pillar
43 Earth point, lower part of right A pillar