Hello. I have a 2008 ram 1500 with the 4 speaker system. I currently have an aftermarket stereo (Kenwood), but it is the slim type (1DIN). Anybody every put in one of those big square/rectangle head units like the ones that Pioneer/Kenwood/Alpine make and if so, if they fit just perfect in the slot? The factory stereo is pretty much a similar shape so i figured it should fit, but want to be sure. Any opinions based on experience all welcome. Really like one of those head units and would like to purchase if it fits. Thanks all.