This connector sends audio to the four corners of your vehicle. The Napa65 is not bridgeable. Do not combine channels.
If you want to play DVDs or video while driving (check local laws first), connect the thin brown parking brake wire to the black ground wire (A7). Otherwise, connect it to the factory parking brake switch signal. blaupunkt napa65 wiring diagram full
Note: You must go into the "SWC" or "Wheel" app in the Android settings to map the buttons after wiring. Reverse Camera Connection This connector sends audio to the four corners