Well I just went ahead and ordered Crosstrek Kicker speakers online for a fraction of the cost at the dealer! I'll let you guys know how the install goes, and what the sound difference is like. I'm upgrading from the 6 speaker set that comes stock with the Limited Crosstrek.
I'm really excited to hear a much improved experience - hopefully I'm not let down
Got the tweeters and speakers for $309 including shipping.
The dealer would have charged $449 for the 4 speaker upgrade, and an extra $319 for the tweeters!