For 50 years, David Johansen has lived a life in music and, “with his exaggerated pompadour, crocodile grin, and raw Tom Waits growl, he’s still having the time of his life,” wrote The New York Times’ Stephen Holden after one of his recent Café Carlyle shows. He talks about that life, New York then and now, what’s “authentic” in music, and if it matters, with NY1’s Budd Mishkin.