Radio not working

[usmcxti77]

I was wondering why my stero is not picking up radio stations. My stock radio picks up radio stations just fine but after the install of aftermarket deck I can not get the radio stations to come in. Everything is hooked up correctly. Any advice...I have 05 sti

 

[Batmobile_Engage]

It's been so long since I've had the deck out of the dash, I can't remember what all is back there. Does your aftermarket deck have an antenna input connection on the back? Most of the things I can think of that could be wrong would only cause poor audio quality instead of no audio.