Open up the cup holder. Take out the two screws on either side of it, which hold it in. Then pull it out. Then put your hand around that silver trim and pop each one out nice and slow (might seem you will break something but you won't). Then there are three screws on either side of the HU which hold it to the chasis. The two lower ones are a ##### to get out if they fall so be careful. There is a 14 pin plug on the back of the HU, the Antenna line, and the ground, which you push down and back on to get out. Also if you have the factory sub, then there is another ground which is screwed onto the HU.