Alright Guys! I am in need of some help and advice. I have an 03 g35 coupe and i had the issue with the ac/ radio jacking up and staying on auto ac. I replaced the entire Unit and the unit is working great, However i have absolutly no sound. not even static. so i asked around and was told that it was my stock amp. So i replaced it as well. BUT STILL NOTHING =[ please help im on my last leg here! Thanks

 

Use a multimeter and check for where the signal ends. Check at the back of the headunit, then before and after the Bose amp.