dont even bother with the oem sub .. it's junk!I know this post is a few months old but I just purchased a used 2008 Passion with 23k miles on it (for $4K mind you ). I thought that it had all the options that you could get - pods, driving lights, light/wiper sensor, leather heated seats, radio 10 (with silver trim). But I noticed that there isn't a sub under the driver's seat (or other seat either). I thought that if you bought the Radio 10 that it came with the sub? It does have the door speakers and dash tweeters though. Did you have to specify the sub if you wanted it when you ordered?