If the slot is anything like my 2002 CRV, it's the meanest possible interpretation of a double din slot possible! The Honda Head unit is deeper than the single Din size, but if you shave 2mm of the lip at the top of the slot, you can fit an Empeg in and, if you are careful in your choice, another din unit - I found a JVC fitted. The surrounds on many makes bring them back to oversize.

I fashioned a bracket to support at the back, topped with foam for silence and attached to the bulkhead with self tappers. I bonded the Empeg and the surround for the JVC together with a thin strip of 4mm plastic sheet and used the normal lugs to fix it in.

The Empeg is on top and, in the CRV at least I felt sure that the airspace was sufficient for cooling.
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Politics and Ideology: Not my bag