I'll be doing mine soon as the new pad came with the car. I searched #m's website and here's the part #. You can also order directly from them.

24 oz spray - $17.80
Aerosol contact adhesive designed for bonding vinyl tops, heavyweight liners and hood silencer pads where high strength and heat resistance are needed. Part number 08090.

8 oz spray - $7.55
Aerosol contact adhesive designed for bonding vinyl tops, heavyweight liners and hood silencer pads where high strength and heat resistance are needed. Part number 08091


I don't know which size would be needed though.

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Thanks,
Ron Brooks