No problem any other questions just post. Crutchfield is helpful is some ways but not always 100% positive seems like a lot of their answers are based off the information they have available which probably isn't to in depth.
Once you figure out what you like check out sonicelectronix.com majority of their stuff is cheaper then Crutchfield I've used them to order my last 3 headunits and speakers. No problems what so ever and they even have a eBay store which sometimes you'll find things cheaper then what's listed on the website.