When I first saw "Sirius" satellite radio with dog as his icon..that too when I was peaking with Harry Potter books...it immediately strike Harry's God father..
And the brand goes with dog..which was the patronus of Sirius Black in Harry Potter...
Sirius also known as "Dog Star" is a brightest star in the night time belonging to Canis Major..
Sirius.. Satellite Radio..Harry's God father..."Dog Star"..
I like Harry's Godfather..