I just installed a JVC head unit in my 2000 accord this weekend. Works great, except the radio reception is now terrible. Channels that were crystal clear with the factory unit are now static. I plugged the large radio antenna plug into the right side of the head unit. I saw a blue wire for the antenna on the wire harness I bought, but nothing on the head unit that matched up. Is there a wire on the harness that has to be connected, or is the big antenna plug the only thing? I'm ready to put the factory unit back in if I can't get this worked out.

 

the blue wire is for the motor antenna. For reception you only need the big antenna plug. Could be something wrong with the deck then. Warranty?

 

check your grounds