XM Radio Antenna Mounting Location?

[scoveny91]

So I have this Sirius XM radio antenna for my kenwood head unit that is installed in my '57. I was wondering if anyone else has a similar antenna and where you mounted it? I want to put it in a spot that is not too noticable but still will get good reception. The base is magnetic so I can obviously just take it off and throw it in the truck when i get to shows, but it would be nice to find a good spot that i can just leave it alone. Pictures would be much appreciated!!