I had the same dilemma. I went to Walmart and bought an installation kit for a 1995 Maxima. After installing the radio in the Max I encountered the same problem with the stock radio being larger than the aftermarket radio, so I installed tray/ cubby hole to hold small items. I did the same with the Conquest. I mounted the stereo at the top of the area for the radio and installed a tray/cubby hole in the bottom area