After doing some Grove Street missions and seizing territory, one of the DJs on the radio will say "Have you heard Grove Streets making a comeback? That's great news. hope they don't take me out just for playing this music."
After the 555 We Tip mission, another DJ says "Did you hear about that D.A. with the trunk full of drugs? I can't believe that. Keeping it all for his own personal stash."
You can also listen to the talk radio to hear Lazlo host the entertainment section, where he interviews OG LOC (the rapper you help during the Grove Street missions) OG LOC's manager is now Big Smoke.