There's no detail or pics in the OPs post to jump to that conclusion, but the two previous posters are for CX5. I don't that car but I can say for certain the Mazda 5 does NOT need anything cut to release the parking cable. If you are not able to snake the line out of the spring, try using a pair of wide mouth/long handle togue and grove plyers to keep the spring tension loaded so you can slide out the end cable. Also make sure parking brakes are NOT engaged (add tensions or shortens the brake line).I was about to ask exactly the same thing.
So physically destroying them is the only way
Good thing I purchased new ones, so no core return required.
Oh, getting the end cable free from the rotating mechanism isn't the issue at all.There's no detail or pics in the OPs post to jump to that conclusion, but the two previous posters are for CX5. I don't that car but I can say for certain the Mazda 5 does NOT need anything cut to release the parking cable. If you are not able to snake the line out of the spring, try using a pair of wide mouth/long handle togue and grove plyers to keep the spring tension loaded so you can slide out the end cable. Also make sure parking brakes are NOT engaged (add tensions or shortens the brake line).