A/C duct routing

[rm2406]

i can feel good amount of air coming out of the vents except the one on the left side of steering wheel right next to the gauges where the CEL light is...
its alot less air coming out. im just not sure how its routed to check for where the disconnected spot might be without tearing apart the dash...
oh also my jeep doesnt have a vent below the dash just above on the left upper side dash and middle underneath stereo and far right of dash passenger side near glove box.. those are the only vents upfront.