Kia Picanto gen3 speaker adapter rings.

Used PC fan screws for speaker itself to be secured to the ring, self tapping into plastic (petg printed)

screws securing to door I used threaded rivers after removing OEM speaker. then some appropriate M4/M5 bolts, I needed to drill out the existing rivet holes of OEM speakers to make the rivets fit.

Used some foam to stick on the bottom, to mate with the door for a good seal.

Drill out hole for speaker cable and seal with some foam, where needed.