No one wants to admit we're addicted to music. That's just not possible. No one's addicted to music and television and radio. We just need more of it, more channels, a larger screen, more volume. We can't bear to be without it, but no, nobody's addicted. We could turn it off anytime we wanted.
"We just need more of it" means we're addicted. It doesn't have to be some crazy obsession, but some people are truthfully addicted to things such as music. Some people don't want to turn it off. "Physically and mentally dependent on a particular substance" is the definition of "addiction."