Its fairly simple. I would recommend a new harness adapter. It just makes the job sooo much easier. Get the FORD radio removal tools from your local autozone. Pull out the old radio. Wire up your harness adapter. I reccomend doing it in the garage so you can solder it. You need to install the "cage" for the HU in an NB. You bend the tabs on it to hold the cage in place, then the headunit just slides into the cage.