So JimmyL is also rogue post intolerant? Excellent...

x2 on the recommendation for the EPC site. Going off Nate's recommendation, but on page 6 instead of 8, is a small U-shaped hose that connects up to the EGR system. The hose is p/n 602 078 11 81 and says "from EGR valve to change-over valve." It otherwise matches the picture in hose shape and general location.

Look for an empty barb/fitting on the top of circular device on the front end of your intake manifold.