These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crosses the Line Twice: "Dios mío, you shot him! There's blood!... and pubic hair!... all over the studio!!" And more.
Crowning Music of Awesome: Obviously, seeing as they are radio stations. Rockstar usually goes through pains to appropriately pick contemporary and appropriate music for each station.
Special mention goes to K-ROSE in San Andreas. It's country, but somehow it works when you're driving through the woods.
To get an idea of just how much this trope applies, look up the YouTube video for any song ever featured in GTA Radio and check out the comments. If you can make it through the first page without seeing at least three comments about GTA, you've reached the low end of the spectrum.
Genius Bonus: Morgan Merryweather often messes up references to classical culture. How many GTA fans are going to know Marcel Proust is French, not Italian?
Hilarious in Hindsight: San Andreas has a radio ad for the American Bank of Los Santos saying that borrowing money for lifestyle is "only a risk if you get into money troubles or the economy changes, which doesn't seem likely!". The game was released in 2004.
This was probably intentional. Even in the early 2000's, there were signs that the economy was going south.
One of the reality-challenged guests on Vice City's talk radio is a Straw Feminist who has written a book about spending a year disguised as a man, disgustedly recounting the (rather mundane) things men do when women aren't around. Four years later, journalist Norah Vincent published a (much more reasoned and sane) book named Self-Made Man: My Year Disguised As A Man.
IV and Episodes From Liberty City takes many jabs towards internet radio, claiming that "no one listens to it". Not only would internet radio become far more popular in The New Tens, but Lazlow Jones' real life radio show became an internet podcast in 2010.
Older Than They Think: You'll be very enlightened if you listen to contemporary hip-hop, then listen to the other radio stations in the games. In addition to the obvious hits from the different time periods, they included a lot of songs that have been sampled for famous rap cuts, probably because those are the easiest to license. Examples include the Isley Brothers' "Between The Sheets" (which was turned into The Notorious B.I.G.'s "Big Poppa") and "Footsteps in the Dark" (whose main guitar riff was used in Ice Cube's "It Was a Good Day", itself featured in San Andreas), and David Mc Callum's "The Edge" (which was the basis for Dr. Dre's "The Next Episode").
Going off that, in V you can hear "The Next Episode"... then switch and hear the Trammps' "Rubber Band" (sampled for The Game's hit "Hate It or Love It"). Shit's like a hydra.
Shallow Parody: The Take Thats in IV got a lot less subtle, and tended more towards mocking specific people and shows rather than genres. Still didn't prevent it from having its funny moments.
Song Association: Lampshaded in IV when the rap station DJ says you'd better like "Flashing Lights" because they are gonna play it again, and again, and again.note Which isn't a bad thing, being that the rest of the station's lineup comes from New York at a time when New York hip-hop was at its lowest point in years. Hi, Fat Joe!