Some cars like NBT is ok not connect the AUX cable , because the sound can switch to AUX by big power cable itself, you said no sound for CarPlay , two reasons: your phone connected to original Bluetooth, or it is not in AUX mode ( not choose AUX in original menu )
Good…👍
How come you didn’t connect aux cable, that’s the reason to watch video. No sound on CarPlay
Some cars like NBT is ok not connect the AUX cable , because the sound can switch to AUX by big power cable itself, you said no sound for CarPlay , two reasons: your phone connected to original Bluetooth, or it is not in AUX mode ( not choose AUX in original menu )