E class audio

I am looking at a 2003 e-320. I am told the car has premium audio with Logic 7. Is it possbile for a 2003 model to have the logic 7 audio but NO harmon karden speakers?

Were these two separate options, or were the HK speakers not availble in '03? Also, does logic 7 mean that is it digital?

Should the logic 7 name come up on the screen when the radio is turned on?

Thanks for you help.