Oh man....Armor-All is an AQUAEOUS product containing a monomer that binds a single-molecule layer over vinyl and similar plastics. I don't think there's ANY silicone in it!
The problem with speakers is that some surrounds are made of butyl rubber, for which Armor-All doesn't act as intended.
On vinyl it's great for sealing/protecting the surface.
Silicone mixtures simply COVER surfaces, shining 'em up (tires, etc.). Armor-All shines up vinyl, etc., by returning it to an ultra-smooth surface that reflects light.
The problem with speakers is that some surrounds are made of butyl rubber, for which Armor-All doesn't act as intended.
On vinyl it's great for sealing/protecting the surface.
Silicone mixtures simply COVER surfaces, shining 'em up (tires, etc.). Armor-All shines up vinyl, etc., by returning it to an ultra-smooth surface that reflects light.