I just got my Cobra 148 GTL CB, had it installed in my pickup, just temporary I am using a inadequate antenna,,I live in the Joliet, Illinois area,,,WHAT I NEED TO KNOW IS WHAT IS THE BEST ANTENNA FOR MY UNIT AND MOST IMPORTANTLY WHARE CAN I HAVE MY UNIT TUNED UP TO THE ANTENNA????? I am new to this and REALLY NEED HELP, PLEASE, Thanks to all for the help,,,,,I cannot find any business in or near Joliet, Ill that can do this, unless I'm looking the wrong way-----PLEASE, I REALLY NEED THE HELP HERE, I'M NEW TO THIS.------looking for that place that can tune my CB-----------also I was told that the Wilson 5000 magnet mount antenna would be good for my unit--or will it be????????????????---frustrated