ads on the watch means the wrist is the product. Apple's walled garden has the unique ability to prevent that from happening. If they restrict the watch to have zero ads under all circumstances then the apple brand watch becomes more desirable compared to android which has no ability to limit ads..
Most record players have rca cables, but operate at a lower level. So you would need a some sort of box to covert the phono signal if you were to use a normal record player.
USB record players side step that problem by using an internal ADC.
I saw this totally demented review of the IPad from t3 and i though some people would get a kick out of it. Warning it is slightly grotesque and not for the faint of heart. However, I could not stop laughing.