I recommend going Crutchfield.com as they have instructions on how to install speakers in most cars.
How to remove the front bumper to a 1998 Nissan Altima?
The front door speakers in your 1995 Nissan are four inches by six inches. The front dashboard speakers are 4.5 inches in diameter.
i front or rear.
Answer 5 1/2 for the rear and 5 1/4 for the front.
You must remove the front bumper!
The 2010 Nissan Altima has 44.1 in. of front leg room.
The 2001 Nissan Altima has 55.7 in. of front shoulder room.
The 2005 Nissan Altima has 43.9 in. of front leg room.
The 2012 Nissan Altima has 44.1 in. of front leg room.
The 2004 Nissan Altima has 40.8 in. of front head room.
The 2011 Nissan Altima has 56.8 in. of front hip room.
The 2014 Nissan Altima has 45.0 in. of front leg room.