Not practical to swap the stacking order. There's about 1/4" space between the top of the player and the under-side of the Clarion. However, above the Clarion are the environmental controls and heating duct - also very close to its top. This was something I debated and mulled over for a few days before I even did the installation.

I'm not using the Clarion's power-amp, so it doesn't generate much heat itself. What I'm thinking of doing is putting a high quality BB fan into the empeg. I've already run the drive cables under the tray in preparation for this.

Like I said, I'm pretty sure the ambient temperature of the car (increased dramatically because of the car wash) was in large part responsible for the temperature. I drove around today for well over an hour and the empeg's case was only slightly warmer than my body temperature when I removed it. I'll know all the fine details once I get back from California and bother to install Hijack.

Bruno