Got it perfect thanks. My '97 "needed" the retainer is was not their.

But, guess what, once you pointed me to where/how to access, I noticed some weather stripping peaking out from the "underside" of the cowl giving way to about a 1/4" gap straight into the Ventilation area from the engine compartment, hence my "Smell" from a previous post!

Once I installed the retainer/filter I glued the weather strip back in place and the exhaust smell when first starting the engine appears to be better.

I may need to Silicone caulk that area but in the NE it just to cold for the adhesive... Will need to wait for a break in the weather.......