finally installed dvd headrest system today
 

Quick question to those electronic wizards out there

I landed up putting an inline fuse at 7.5A (dvd system at operating draws 7 A)
on the closest wire tapping into the fusebox on the passenger side door. There was an empty slot with metal contacts that supposedly powered rear heated seats at 5A --according to the fusebox panel diagram. (I have rear heated seats in the car but at another fuse location) Am I fine with 7A accessory tapped into 5 Amp slot as long as the 7.5A inline is between the connection?