You need to figure out exactly what's wrong with them, first. Could be the head unit output being defective, could be broken wires, could be the speakers themselves.. could also be as simple as your fade being set entirely to the front speakers.
The 2013 Nissan Altima has 37.1 in. of rear head room.
The 2013 Nissan Altima has 52.1 in. of rear hip room.
The 2013 Nissan Altima has 56.1 in. of rear shoulder room.
The 2013 Nissan Altima has 36.1 in. of rear leg room.
The rear track of the 2013 Nissan Altima is 5 ft. 2.4 in. (62.4 in.).
u have to remove the rear deck lid, speakers r underneath how do you remove the rear deck lid on the 2005 Nissan altima
6x9
The 2013 Nissan Altima has front wheel drive.
You need to remove the rear seat, then remove the package tray.
they are 6X9 in the rear and 6 1/2 in the doors
A 2008 Nissan Altima has 6 speakers, 2 in the dash, 2 in the door, and 2 in the rear deck.
Rear deck speaker 6x9. Front and rear door speakers 61/2".