That sounds like a pain. But it's possible. If you want the easy route have a profesional do it. If you really want to do it yourself it may be tricky. You need to plug off the end that the hose connects to, dig up the mainline near the water meter, tie into line put in a main valve, blow plug, backflow device, and then find your main sprinkler line and connect into wherever. Finding the best place to tie into your sprinkler main line might be tricky, or it might not. Good luck.
Bhungue2