Hey man, I have one that came with my car, judging from what I have seen after looking around, its a Rexpeed one. Seems to fit fine, except I recon the way its designed, any amount of movement etc would scratch a line across the roof. There is also a gap around the antenna, so water may get trapped under it.
I have removed it now because of this. To be honest, if I was going to get one, Id probably look at the OEM style one, as it is flat at the font, and has rubber also, this would make it soft on the paint.
This is the Rexpeed one, see how it bends down, and the rough edge sits on the paint, this is where I recon it will scratch the paint:
This is the OEM (Style) one, see how the sharp edge is facing forward, and not sitting on the paint, they also have the rubber edge for added protection:
Personally, that's the one I would go for, and still may. there are a few that make the replica of the OEM ones.
P.S. I am not sure weather our cars use the Non-SSS or the SSS versions tho, I think it would be Non-SSS tho.