I used the waterproof 1/2" elect box fitting for conduit. it has the rubber piece inside with an oval hole. other than that, put it thru the top vent. you dont want a wsm lid cracked open
I removed a screw and replaced it with an insert.
Sorry I missed this yesterday.
It is best not to close a lid on the wire. If you do you take the chance of crimping the jacket and causing a short. The only lids that I feel safe closing on the wire are ceramic grill lids. This is because of the felt on the lids.