Yes, crutchfield will give you the mounting hardware for free but save yourself some cash. On our cars you just use the OEM brackets from the stock stereo to mount. Only thing you really need is a harness adapter and that can be picked up at most electronic shops for about $15 or less. I'll have to check, but I think I might even have one sitting in my garage. If I have it, you can have it for free just cover the shipping.

http://cgi.ebay.com/NEW-PIONEER-DEH-P5900IB-CD-MP3-CAR-RECEIVER-DEHP5900IB_W0QQitemZ170077120107QQihZ007QQcategoryZ39752QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Cheaper then crutchfield and a pretty reputable ebay seller.