I had a '93 Typhoon, and it had the same sized DIN. I've also had a '98 Sonoma with the same sized DIN. The problem I had with the Typhoon (not sure if '94 is the same as '93) was that the opening was not deep enough for my Kenwood receiver, and may not be deep enough for the empeg. You may need one of those ugly adaptors that allows it to stick out from the dash. I got the adaptor from Circuit City, but that was also back in 1997.

In my '98 Sonoma, the opening was deep enough, and the single DIN adaptor I got actually looked pretty good installed. It was a shame to waste that space with a blank, though.

-Daver