I'm hoping this can be a good resource of information.
Based on my research I am discovering the following regarding the pre LCI e70, and want people to correct me on my conclusions.
Base
No amplifier in rear driver side panel
No Center Channel
Mid in front doors (No Tweeters)
Mid in rear doors (No Tweeters)
No speakers in cargo area
Woofers under front seats
Basic Treble/Bass adjustments
Hifi
Analog Amplifier in rear driver side panel
Tweeter and Mid in Center Channel
Tweeter and Mid in front doors
Tweeter and Mid in rear doors
No speakers in cargo area
Subwoofers under front seats
Basic Treble/Bass adjustments
Premium
Digital Amplifier in rear driver side panel
Tweeter and Mid in Center Channel
Tweeter and Mid in front doors
Tweeter and Mid in rear doors
Tweeter and Mid in cargo area
Subwoofers under front seats
Digital EQ adjustments