You don't have to do nothing, just plug your device and enjoy.
Kali is a debian with all this kind of stuff, drivers, firmwares, tools, that the interest of kali, a full and complete distribution for wireless, pentesting, hacking, cracking
The tutorial you followed is for PCI ralink chipset so i guess you just made a mess...
I use severals ralink USB chipsets RT3070, RT3072, RT3572 and all of them work out of the box with kali ( actually with 99% of GNU Linux distributions )Originally Posted by h3rucutu
