Ha!! I found Cartunes right down the street from me, have an appointment for Saturday.
Cartunes of Atlanta | Mobile Audio
Now I'm just debating buying the system from them (for $1299) or getting it from an authorized dealer on ebay for $899. Pretty big price difference (though they cut their installation price by $100 if you buy from them). But if something goes wrong, they will fix/replace it for free so may be worth it. Thoughts?