A reference to the lyrics if Grady tate who penned the lyrics "Keys that jingle in your pocket, words that jangle in your head" on the song "The Windmills of Your Mind".
Tuan "Tommy" Vu is a real estate investor/speaker best remembered as an infomercial personality in the late 1980s known for displaying his yachts, sports cars and large homes in an attempt to show you that you can use his methods to become sucessful.
The beastie boys are suggesting that they can entertain a block party for the length of time it would take for your hair to turn gray (anywhere from 30 - 50 years usually)
you might have a nice sound system in your car, but the music you're playing is not very good. the music is just an imitation compared to quality music, like yoo-hoo chocolate beverage tries to imitate chocolate milk but isn't nearly as good or "real."