2 parts needed. The plastic vent tube and the vent as pictured.
1: Remove the side trim piece. 1 plastic screw by the firewall, the rest are just clips that pull off.
2: Remove the lower dash trim. 4 10mm bolts. One on each lower corner, and 2 that are behind the plastic covers towards the top. Remove the Hood Latch release cable.
3: Unscrew the phillipshead screw on the front left side of the vent tube. Then just pull the tube out.
4: Put on the vent tube with the opening the same way you took the other one off.
5: Poke out the plastic cover in the lower dash piece.
6: Push in the vent.