Very complex question; I'm still researching this within my own system. How long have you got?
The most important way to cross over to the chakras would be from the orbit. The chakras correspond with nerve plexuses positioned along the central channel, or core vessel. Thus if you use any Chinese techniques that relate to the central channel, you can feed the chakras using the technique, but you can use the orbit to do it too.
If you know the real Taoist microcosmic orbit, involving the opening of acupuncture points on the functional and governor vessels and continuous circulation of chi through them (and if you don't, but are interested in meridans, then you need to learn, as they are the two most important meridians), then
here, for example, is an interesting technique which you can use to include the chakras in the flow of orbit energy. You can probably come up with your own variation using experience.
There are other ways too, such as the mini-orbit approach. If you want more I'll tell more! This is all about the alchemical way.
There are two authors who probably have stuff in detail about this, but unfortunately I haven't yet had the time to read either. The first is Hiroshi Motoyama, a Japanese kundalini expert who works more from a Buddhist perspective, but had major kundalini awakening, and apparently
his book on chakras also mentions some theory he has concerning relationship with the meridians, and he definitely does practice the orbit. The second is Jerry Alan Johnson, a ch'i kung practitioner who came out with a huge 5-volume series on medical ch'i kung the
first volume of which contains info on chakras, as I saw on a quick flick-through in a store not long back.
I've been meaning to scope out what these authors say about the very interesting interactions between these body energy systems, but I just haven't got round to it yet!
EDIT: Oops! Forgot someone...
CYndi Dale probably has things in her big atlas too... another person I've been meaning to get to grips with. What a great age we live in, with so many intelligent folks pursuing such studies...