I just installed a Pioneer DEH-3800MP and now the antenna doesn't operate while listening to the radio. The factory rear center subwoofer/ amplifier doesn't work either. It worked with the factory head unit though. Can anyone please help me get factory amp/ antenna to work?

thanks

 

Check the wires if they are connected properly.

 

The rear center amp/sub runs off of the signals going to the two rear speakers.

 

antenna should be controlled by the weird metal plug to the back of the headunit.

check fuses?