You don’t need to even use the chakra system to raise the kundalini. it is a biological process that is available to all, and can be raised through other ways, like the Chinese system of dan tiens and meridians. The Hindu system of chakras and yoga is simply where the term “kundalini” originated. It is known as the Greater Kan and Li in Taoism.
I am in the process of doing so now and you can read about it here: