I connected all the wires from the alpine harness to the metra harness according to the wire colors. Powers on but no sound from either source (tuner or cd). can anyone help?

very frustrated. ive installed my radios in my last 3 cars in under 30 min each. this one has taken me 3 hours. the last car i had was an 05 frontier with the RF package. youd think it would be the same exact install. at least im a pro at removing the dash.

 

what year is your Z? I found that my wiring diagram is wrong sometimes...

 

i have an 06.