I wanted to throw in something regarding the RF choke mentioned earlier in this thread. Gunrunner John was the one who put me onto them. It that's the little green center with wires running off each side that you bend and slide under the ports on the auxiliary power side, then they evidently work. I did that after I was having some signal issues, and to date, no issues. So my two cents worth, minus taxes, the RF chokes as a interference or whatever they do to help, good idea.