[mention]Emilio[/mention] .... not as tough as I thought. The important step(s). Making sure you find the right diameter foam. The speakers I had were 6” but I managed to find the right sized foam on eBay. It included a 20 step line by line instructions ... but most importantly.
- disassemble
- clean /scrape / cut out the old foam
- pre lay to make you know exactly where to glue the new foam to
- Apply supplier glue evenly making sure there is a continuous bead so air can’t escape. Iirc, I did the part attached to the cone first then outer frame.
Tested it for a few hours last night. No more buzzing

. Not too bad for a $15 kit and a first timer attempt.
Total cost for the project is about $50-60 for the repairs and wood.