It's not actually a thing-- I have a long running joke with some of the guys at the LBS-- I'm the Fredliest looking guy you'll see (I don't shave, I don't match kits, my bike has all sorts of superfluous crap on it) but I ride more miles than 98% of the "serious cyclists" that come through there. So after I painted the frame, I put Non Gravis (Not Serious) on the top tube, and Fredwagen (in the Porsche font) on the downtube.

And yeah, I absolutely had to keep the speaker and the phone. I ride 90% solo, so the music keeps me company, and the phone stays out of the jersey ever since I crashed, landed on it, and had to live with a shattered phone screen for almost 9 months.