The Nissan Path

Alright soo. I would like to replace the Bose radio because there is no aux in my 06' 2wd. I have not a clue how to do it and honestly don't want to pay a lot of money to have it installed. Is this possible to do by myself? I also thought about maybe just installing an aux cord into it. What's my best option? And also can Bluetooth be installed in the stock Bose radio?

if its the jvc i had before it completely sucks, the bluetooth doesnt work worth a damn, the screen is impossible to see and its slow as hell to respond