http://autoforums.carjunky.com/Automotive_Repair_C1/Car_Stereo_Repair_Advice_F28/2004_Sentra,_Remove_radio_CD_player_P20744/
the third post on this forum has step by step directions
one
where is the fuel reg 04 sentra 1.8s
check your answer
Yes
check the dimmer switch.loose connections often mess this up.
could be a contant velocity joint
The easiest way to get them to come on is to tap into the wiring harness of the parking lights.
The are two o2 sensors in an 04 Sentra. One is called the front sensor, and it is in the engine compartment, in the exhaust manifold. The other, the rear one, is in the exhaust pipe under the car, past the catalytic converter.
It calls for 2 7/8 quarts but I put 3 quarts. That 1/8 quart won't make no difference
Yahoo search 04 Nissan altima speaker and a you-tube link should pop up. 02 and 04 have the same set up so this should work for you vehicle
its in the fuse box to left side of the steering wheel. just pull the cover off and there should be a diagram of the fuses and their purpose i guess you could say.
why cant people answer questions directly