Kali Linux Dual Boot - Wifi not working I am struggling to find a detailed guide on how to troubleshoot wifi once Kali Linux 2.0 has been installed.

I dual booted on my MacBook Air (El Capitan) Kali Linux 2.0, and as I have been warned, and seemingly could not avoid, I can't find the wifi interface. 

After reading Debian manual, and a bunch of others, and trying them out, I seem to run into problems that are not listed.

Primarily I've narrowed down to this site for the most concise help:


  https://wiki.debian.org/wl#Broadcom_BCM4311.2C_BCM4312.2C_BCM4313.2C_BCM4321.2C_BCM4322.2C_BCM43224.2C_BCM43225.2C_BCM43227.2C_BCM43228.2C_BCM43142.2C_BCM4331.2C_BCM4352.2C_BCM4360_devices_.28wl.29



Can't make Module wl to work, and not sure what else to do, I've done all other steps, don't know where to go form here.
My specs are:


MacBook Air 15
Installed Kali Linux 2.0  64 bit - Dual-Booted on an OS X Extended Journaled Partition
My Wifi card chip is: BCM4360 14E4:43A0
I don't know what do you mean by where to find /etc/apt/sources.list . It's in /etc/apt/ as the path indicates. You can edit this from your terminal, I prefer using vim. sudo vim /etc/apt/sources.list, hit Shift-G to jump to the end of the file, followed by 'o' to go into insert mode on a new line and write deb http://http.debian.net/debian/ wheezy main contrib non-free. Then hit the escape key followed by  ':' then 'wq' and hit enter to save and quit. (you're free to use any editor you want just remember to run it as root with sudo)
Kali is based on Debian Wheezy: http://docs.kali.org/policy/kali-linux-relationship-with-debian
When the first step is done correctly you should be able to do what the debian wiki says.