Fold down rear seat custom stereo?

Back in the day a friend had a Coleman jug back there. He ran a hose up to the glove box. Think he had a piece of copper tubing for a spout. Had an electric windshield washer pump hooked up to a push button. Just hold your cup up to the glove box & get a beer or mixed drink. No open bottles in the car. Sheer genius! Had to drink fast though, as the stuff in the line warmed up fast!