Yes it does, my 4th year warranty was a Nissan extended warranty and through this, they resolved my Bose issue and also the rear clicking axles that my car was suffering from.
£200 for another year is something I would go for, that’s a great price, I paid just under £400 for a single year…
I also know from experience, the extended warranty won’t cover certain items, such as the paint flaking/bubbling on the wheels, these can only be swapped/refurbished in the first 3 year manufacturer warranty…