I'm trying to find the origin of this quote,

“I was watching him from the side and he called me up onstage. He handed me his guitar and he said, "Play!". I didn't know what to expect. I thought it would be really loud and just, you know, all over the stage. It wasn't though, it was about as loud as I set my guitars. It even kind of sounded like mine. I was so surprised. He stood there in front of the pedal board with his arms crossed just hitting different pedals. At that moment I realized...jeez, it's all about what's in this guy's fingers. What can I say? He was one of the truly great guitar players”

It's Brian Setzer talking about Stevie Ray Vaughan, but I have no reliable source to reference. Any one recognise it?
rhcp 4 life.