Anyone have experience with putting the cables through a window or deck door?

Hi, my condo won't let me drill through the will to feed the cables for a mini split.

I'm examining my options, and am considering putting the cables through the deck door, and sealing the gap with tape and cardboard.

Would this still be effective? Thanks!.

Question from user godstriker8 at hvacadvice at reddit.

Answer:

Would this still be effective?

Hard to tell without photos, but it sounds like a disaster in the making.

Why not just use window units?

Answer from user jam905 at hvacadvice at reddit.

installing a mini split without drilling holes into my wall