Hey Joe,

I use a device called the SWI-X in my accord and it can pretty much integrate into any car. No doubt it can utilize the mode, volume, and next buttons for use with the empeg. Hondas use one single wire for the commands on the steering wheel. This device recongnizes the resistance of the signal when each button is pressed and sends the corresponding signal to the IR LED transmitting the command to the empeg. What makes this cool is a guy on some forum used some extra resistors that were included to ADD new buttons onto the steering wheel to gain additional remote commands for his stereo. It was cool when I read it. You should look into it:

http://www.go2pac.com/products/swi.htm