The old XJ is wafting a bit tinky

'96 XJ here and after a summer's worth of a/c use the old gal is smelling a little musty so i got some aerosol spray duct cleaner. Part of the procedure is spraying the alcohol mixture in through the fresh air intake grill. When I took the grill and wiper arms off to get a better shot at things I expected to find some kind of intake vent, alas there was none to be found. So I thought I'd write in to make sure I was in the right spot.

I'm guessing the corridor I found with the wiper motor in it is part of the intake system, and the vent I'm looking for is probably toward the passenger end. That sound right?

Yes it does. Cowel passenger side

its hard to see but its just a hole in bottom on the cowl. it should have about a 1/4" lip around it.

Right on thanks for the info!