when buying online chances are that your product wont be covered under manufacturer warranty. but thats the risk you take.
the way i see it is generally online pricing is about half, sometimes less, and if you by one and it breaks just buy another one and its like buying one with a warranty. if you buy one and it doesnt break then there you go you saved a ton of money.
always call first before ordering to make sure they truly do have it in stock. once you place that order its harder to get your money back and you might end up on a couple month long waiting list for something that may be back ordered.
take it one step further and check out our classifieds section. can find some good deals on some lightly used stuff.
welcome to the wonderful world of buying car audio online.