Found It!!! Somehow a piece of the aluminum tape they used to install the AC got lost in the vent-box inside the roof of my fiver and was rattling like a S.O.B!, luckily I have my Swift-Hitch Camera System
clickand after removing the A/C shroud and blower-box I was able to put the wireless camera down the vent to see the problem and badda' bing badda' boom now a nice quiet A/C unit!! I bought that Swift-Hitch Camera System to make hooking up my boat and cargo trailer easy (and it does) but here's another example of how handy it is!