I don't know if anyone else has experienced this problem but, I have had two guys return with issues with the soldering on the bottom of these antennas. After seeing this twice , I decided to cut one open to see what the problem is. The quality control dept . is missing the fact that someone is not putting the silver coated wire into the hole on the base of the stud BEFORE soldering. They are just soldering the wire to the top of the stud ...very little contact and really sorry solder too. It will work fine until the antenna starts flexing then it breaks loose from the base stud. When you stop the vehicle the antenna stands up straight and the wire touches the stud making it very tough to find the problem. GOOD LUCK and keep 'em talking!