I did my wife's '98 S70 over 4 years ago and they still look great. I took all 4 panels off, heated the inner trim perimeter with a heat gun and removed the cardboard center sections. I used a 3M "Clean & Strip" brush, on a slow speed die grinder, to clean off all glue from cardboard. I went to an upholstry shop, bought a couple yards of a very heavy tweed cloth (it stretches). I also bought a pint of upholstry glue from him (apply it like contact cement). One at a time, I coated inside cloth and cardboard, left it sit 5-10 minutes, then glued material to cardboard, carefully stretching material into pocket curves. Trimmed excess after dry, trimmed switch openings, etc. I used a Lord Fusor 2 part adhesive to glue center cardboard panels to trim panels, clamped and allowed to cure. I spent less than $50.00 on materials and about 4 hours of my time. Every time I get in her car I think how "factory" the inserts look!