would appreciate any help on this Guys !
push button 68/69 thumb wheel AM radio has 2 wires for the speaker green & black ! can i put a block conector in this & run 3 speakers ?? with out damaging the Radio ?? . or how did the factory do it to have one in the dash & two under the rear package shelf ??? what was the factory set up ?? wiring diagrams ??

My 1969 GTX came from the factory with AM radio and the rear seat speaker option. It had one speaker in front one in the left rear. It had a wire harness with a fader control, (pot), that plugged into the green and black wires from the radio. The radio will drive 2 speakers at least but doesn't have a lot of power. What I did was leave the stock radio in place and installed one of the secret audio radios from Custom Auto Sound. It drives a CD player and the latest ones have an MP3 input too. Take a look.
www.customautosound.com

thanks for the reply Jim yeah good idea no sence messing with the factory stuff , will put another one in the glove box ,