Hacking up dashes

So, I was just wondering people's opinions on removing original radios, and cutting a hole in the dashboard to install a stereo. Again...To each his own. And YES, each person is entitled to do as they want with their car. But does a person have the right to make irreparable modifications to a car that will be around long after he / she is dead. My car still has the original AM radio, but I admit driving my Dodge would be more fun, if I was listening to BAD COMPANY.