The 2010 Frontier have 3.5 tweeters (Front dash) 6/9 front doors and 6.5 in rear door.
The 2010 Nissan Frontier has an inline 4 engine.
The 2010 Nissan Frontier has a 2.5 L base engine size.
From what I can find out, it seems to be 6.5".
The rear speakers in a 2002 Nissan Frontier measure 4 inches and are located in the back doors. The front door speakers measure 6 3/4 inches.
6x9 component in the front, 6.5 rear door.
2000,nissan frontier speakers size-------6 1/2 Try to use the Nissan speaker adapters plugs so you don't need to cut wires and mess up the electric system, you can get those from eBay or amazon.
front 6x9, rear 6.5
6 X 9 on the front doors and 6 1/2 on the rear.
The 2013 Nissan Frontier has a 2.5 L base engine size.
The 2005 Nissan Frontier has a 2.5 L base engine size.
The 2014 Nissan Frontier has a 2.5 L base engine size.
The 2003 Nissan Frontier has a 2.4 L base engine size.