I would says yay-s. It's not rough.
If iirc, the stock tweet wires are red +/black -, not hard to figure where they go on the main Polk tabs.
While I'm thinking of it, Don't randomly snip a braided wire anywhere on the speaker. That could be.... bad.
I simply snipped a lead on the cap that was Goo'd to the tweeter on the 2-ways. However, on new parts, you might try something reverseable like desoldering the cap or a wire that runs to the tweeter. Just need to open the circuit leading to the lil bastard..
Erm, which Polks did you get?? All I see above is 5" Polks that required an adapter.
Must 5 1/4", but which series? DB? MM? Can't be the SR series. BB.com isn't listing Polk car audio at all right now.
If you can tell me the series or model #, and I can tell you how to dis- the tweets in a non-destructive manner. Alternatively, if you look a the back of the driver and see the tweeter wires coming thru the center of the magnet and up to the terminals, That would be the wire to politely snip, and securely insulate.