Well this is what i did. Just go and but the appropriate size speakers for your year and place them in the Bose enclosures, but first open them up and pull out the amps and rewire the amp's +and- IN, to the speakers IN +/-. I did this to all 4 sides. Then Buy the Nissan harness adapter from Crcuit city, it will be labeled what all the color wires do and will plug directly into the stock harness in the car. Then just select the headunit you want and cripm all the appropriate wires together and you're all done. It really is very simple, it took me a day and a half only because i used larger speakers in the enclosures and had to modify them with my trusty Dremel. Hope this helps.
