avh-4400

I just installed a used AVH-4400 and I like the unit so far, but one thing is giving me trouble. Everything (Ipod/USB/CD/Aux) works just fine, but the Tuner is blank. It's on HD Tuner and no stations can be selected and no message comes up. I can't even switch it to Local Tuner, because there's...

I just installed a used AVH-4400 and I like the unit so far, but one thing is giving me trouble. Everything (Ipod/USB/CD/Aux) works just fine, but the Tuner is blank. It's on HD Tuner and no stations can be selected and no message comes up. I can't even switch it to Local Tuner, because there's...