Hidden Car Antennas How Do I Install Satellite Radio In My Car And Hide The Antenna??

How do I install satellite radio in my car and hide the antenna?? - hidden car antennas

I bought a Sirius radio for my friend and now I'm confused ... How can I hide the antenna cable? He has a truck (if used). Would it be easier to take them to a Best Buy or what? Or is simple enough to be able to solve it? Help!

PS is a surprise, so why not, I'm with him!