I feel if you were going to do that then you would have to forget about using your trunk at all. Mailny for two reasons. The sound quailty would be pretty bad because it would be burried in stuff and covered with a piece of glass which would be hard to insolate as well and then on top of that I believe, in order to make it clean you'd have to do some kind of work in the compartment to add insolation and padding so its not dirrectly on metal... Also you wouldn't have a spare tire so I guess you could crank your base up while you're waiting for a tow truck to take you home when your tire pops unexpectedly.