Chevrolet Suburban Radio Wiring

I Have The Vehicle Listed Above Ls Non-bose, No Factory Amp. I Have Installed 2 Factory A Pillar Dash Speakers, 4 Aftermarket Door Speakers...

Also On My Suburban About 2 Months Ago You Can Only Hear The Speakers On The Passenger Side. My Husband Already Put A New Radio And Has...

Radio Turns On All The Dials Work Including The Volume, But I Cannot Hear Anything. It Was Working When I Was In The Car And I Came Home...