Plink , i heard the improvement right a way. Did you hook up the wire right? One wire has to come from the outer shell of the Dc input socket. Which the nut is missing, It was showing in the online manual. I took a small strand wire , push it in together with the Dc input plug. Make sure it only touching the outside shell, which is the negative side. This is for testing only, i am going to get the nut that was missing and get a proper connection.