We had cb installed yesterday and while trying to check reception since no headsets yet while talking from my Venture the RX flashing showing reception but no sound the preference screen looks right , when you key the talk button my Venture RX recieves static so I assume it is transmitting, I should be able to hear reception but cannot figure why not! Does the cb only work through headset speakers? I am ordering a lower cord from J&M for our Elite 584 Hesdsets, Help!!