I bought one from PriusChat shop, it is made by Visual Garage. Install went fine, I followed the instructions exactly. Turned on the radio... I now get just 2 stations. The reception is absolutely horrible. Has anybody here ever used a hidden antenna that works well? Im thinking that this stupid fin antenna isn't worth hassling with (it looks good) so if I just keep it on the car and then add a hidden antenna under the dash, Ill have the shark fin just for looks and a hidden antenna under the dash for functionality. By the way, the only reason I got this shark fin antenna was because the stock antenna base started leaking into the car, and this seemed like the best way to solve it without having to undo the headliner etc. So, the shark fin is now just an expensive, good looking leak stopper.