My 67 Impala SS came with the dash speaker and a 6x9 in the rear deck on the right. The cutout in the metal for the left speaker is there from the factory, just requiring cutting the package tray cardboard. I've also got a factory rear defogger on the left side of the package tray as well. But no speaker in the middle of the rear seat. My car is all original as my grandfather bought it brand new in Dec. 1966.
Being able to turn on/off Bluetooth from factory radio is genius… one of the best ideas I’ve seen. Better than BBC a toggle switch. Removing the tube still allows you to power the radio? Where exactly was the connection made to power Bluetooth system?@@CustomAudioReimagined