This will link you to a page that has different types of antennas just click on the model numbers and a PDF will pop up and you can read up on them. Mine worked pretty good untill i went to the car was and the Mother Fu**er was washing the top of my truck and broke it right off. Broke it so bad that the bracket that was holding it down under the roof riped out and put a hole in my roof. I had to fill in the hole myself and repaint the top of the roof. Pis*ed me off i talked to the manger and he said that there was no way they could have done it. Bull*hit i told him and left people are just stupied and dont respect anything. So i fixed the hole and just left the antenna inside the truck and it works great.
Yea not real happy about it but its all part of the game i guess the minute you start to change things on cars or trucks you know s*it is going to happen to it. The funny part about the whole thing was everyone at the car wash was looking inside the truck and was like WOW how did you do all of that. I had one guy ask me if the dealership that i bought from did the work or what audio shop did it. I told them myself and a buddy did all of the work and NO belived me LOL. Whatever fix my roof bi*ch lol