Correct. Most domestic polishes will have silicones of some sort in them. Even in very small quantities, these are very difficult to remove if you ever want/need to do paint touch ups or a re-coat. They're just a real pain, causing the new paint to have "fish-eyes" in it and ruining the surface. Most professional auto polishes are silicone-free and most guitar-specific polishes are just re-branded auto polishes in dedicated (small size and very expensive) packaging. Meguiers auto polishes are used by Fender, for example.
 
	Just stay clear of using Armor-All on or near any auto or guitar paintwork/lacquer. It has a high silicone content as do most auto interior dashboard sprays.