You can get a simple key made at Lowes that will fit the door/glove box, and rear tailgate. i got one done.
But you can't for the ignition. If you use the so called simple key in the ignition it will start then shut back off in I think 5 seconds. The Key has a security chip in it and only keys with the security chip will work. There is a place online that sells these pretty cheap. You can program the key yourself as long as you already have 2 keys already with programmed chips. If you only have one, you have to have the dealership or a locksmith program the second key for you.