Rockford Fosgate Audio SER Spec-v Rockford Fosgate Audio System?

SER Spec-v Rockford Fosgate audio system? - rockford fosgate audio

I had a similar problem is the audio, but waited for someone who could help me know more about Nissan.
The car is a SER-Spec V 2002 with the factory deck, Rockford Fosgate
Basically, I have tried two units of the head (for a Sony and Panasonic) and both the power, but not get any sound from the speakers.

Is there something special for the car with the radio-frequency system that had something to do. I know it is connected to the right, the action works, and I do not see a 2 different head units have the same problem, so I think it must have something to do with the RF package.