I agree 100 % with everyone here. Wish it was louder, but it should be adjustable through some sort of software update. (Hopefully) But, like Jubba said, since you can use the AUX port, it really shouldn't be that big of a deal.
Oh, and make sure you buy the car charger for the phone. The car docking station does not come with a charging cable itself, for those who do not know. I didn't realize that until I opened it