Trying to find a radio to fit my 2006 altima?AReccomendation

[fezz4734]

Hello, I am trying to find a radio system for my 2006 Nissan altima because I really want an aux input, I don't know which will fit and I am more worried of buying one that doesn't fit or getting one that won't work with my altima. Any recommendations for a radio for the 2006 altima? I have heard of someone getting the clarion cx501 for the 2005 and I didn't know if it'll work with my car? I am kinda cheap so I really wanted one of the price range of 100-170. I have seen the pioneer FH-X700BT on amazon and both are around my price range so any ideas one which I should get or another one I should get? Any help will be greatly appreciated