I put an amp under both front seats in my prelude. They have NEVER over heated. Having them under the set saves alot of room, and you use way less power cable. Sony amps tend to get pretty hot though. It's a tight fit in the Prelude, but accords prolly have a little more clearence. I don't know about accords, but a lot of preludes get moisture around those vents. I ended up sealing those vents up because when bass hits the rubber flaps well.......flap quite loudly. A good rule of thumb for amps is "out of sight, out out mind."