Iiiiinn the trunk.
Justin and I just spent 4 hours installing an amp into my car. It's fucking awesome. I want to do more with subs and multiple amps but I'll just wait till I have my next car early next year. I did this now cos it was very free, and it'll be as easy to get out as it was to put in. It's all fucking diy, wires hanging all over the place from my battery, through the interior, and into the trunk.