2000 Ford Mustang Replace Radio No sound from speakers

[tralfaz]

Hi
I have a 2000 Ford Mustang with a factory installed radio cassette
player and a factory installed cd player below. I purchase an alpine CDA-9883.
I used a scosche fdk 106 wiring harness. I connected red to red, yellow to
yellow, black to black, orange to orange. I didn't use orange white, orange blue, blue white or blue. I connected all speaker wire to harness. I have no sounds from my speakers. I am unsure or how to correct this. I in error posted this on introductions forum.
Thanks For Any Help