>I discovered that a fan was a requirement.

Yes, I've been pondering that problem, and may have to offer fans as an option. The unit will have air passages to match those of the player, including the top "fan" grill.

I'm looking around for a cost-effective method for pushing air through those holes. The player should get no warmer than when in most cars, but even that is pretty darned hot in reality.

The big issue is noise. People don't want fan noise when listening to soft background music, or at least I don't want it. I'm still working on that one.

Cheers