audio dilema

i ran across a huge problem.  i recently acquired some screens and installed them in my car, but i needed a video source.  so i was going to use my ps2.  everything is fine with the installation except for the audio on the radio.  i purchased a Delphi SkyFi FM Modulator. The ps2 audio output is a set of rca's    the rca's are connected to female rca jacks that become a stereo jack    the stereo jack is then connected to the fm modulator.  i set my radio on the specified frequency and....no output.  everything is connected, the ground, 12v constant, antenna to modulator, modulator to radio, and input source, but still no sound on the radio. and the radio is the factory radio with no external amp.

is the modulator not compatible for audio signals via the rca's? is there anything that will work?

My guess is that its something to do with the RCA to stereo cable connection.  Plug the PS2 back into the TV make sure its cable works.  then try and run something with a stereo connection on it right into the FM mod. Your stereo picks up FM signal obviously.  If niether of these solve the problem chances are that there is something wrong with the FM mod.  always double check things like power and ground too.

Also if the Modulator has different freq. settings try another one.