I really miss GTA 4, after some considerable ammount of playtime, I started just loading up the custom radio channel with everything I thought'd fit driving and cruising and reckin shit. After that, I hardly ever listened to anything else.
Fun random - I added M.I.A's "Bad Girls" to my custom radio channel, seeing as how well it fits cruising - both musically but also thematically, as well as being all badass - fitting GTA. Then GTA5 comes along, and the song's allready included :v