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Hi, the basic elec. Design. Of auto lighting circuits is based on this concept. Dash lights and tail lights use the same feed, For example, if a dash light. Was shorted, you will lose dash and tail lights, Assuming. your stereo has the factory system, this is where. I would start. First chk your fuses, if they are ok, your. issue. may be your dash dimmer,, or worse cas, your muttifunction switch may be def.
Is it a standard version or Bose version? If it's a standard version then either the plug in the back came loose or the built in amp in the stereo is dying. if it's a Bose, then there should be a pre-amp some where under or behind the dash or possibly under or behind the rear seat/ trunk. In that scenario it's possible that the amp has gone bad. Another possibility regardless what version system is installed would be if a wire cracked and is showing somehow, grounding out causing the speakers to go out. Bad ground. maybe a loose plug behind the stereo. Also has the stereo every been replaced. Is it factory stereo and speakers.
Nissan change their color codes on their harnesses all the time , a diagram won't be much use. What has happened is that Nissan has a wire that appears to be an earth in the stereo harness , but goes live when the headlights are turned on ( it is there for the factory stereo to dim the lights when the headlights are turned on.) Easiest way to connect stereo is to use a Multitester set on 20 volts to find Power , Accessory and earth wires, remembering to turn your lights on and off each time to check for the Nissan sneaky wire. ( You are lucky, I have seen whole looms go up in smoke because of that wire ) To isolate the individual speaker wires, solder a couple of wires to a AA battery and " flash " it across the pairs of suspected speaker wires while listening for a " Crackle " from the speakers, this is a handy way to figure out which wires go to each speaker without having to pull the doors apart to look. Happy Fixing Marshall
Sounds like you're hooking up an aftermarket stereo.
The B+ is for a battery constant-on connection. you can find one with a voltage probe tool (looks like a pointed screw driver with a grounding wire attached... and a light bulb in the hande.
You can probe for a b+ connection by connecting the ground clip to a solid grounding point and probe for a wire that is "hot" while the key is off.
For the acc wire, find a wire with the key on that is hot, but goes off when the key goes off. There are several posibilities and any will work, as long as your lines to the stereo have a fuse..
Happy probing.
k
I just did it... the panel below the stereo pops of first. (the one with the three a/c control knobs). remove the 4 screws. Lift the trim around the stereo from bottom to top. then you will see the mounting brackets and take it from there.
My stereo system for my 2005 Altima Nissan stopped working and wouldn't eject the CD. The CD has been removed but the CD player doesn't work and want take CD'S. The radio continues to work.
Try radio shack, or stereo sales/installation place for ready to go plug adapter. For a few bucks, it saves headaches, and butchering the wiring in case you want to re-install old one later when trading in or selling the car.
Sounds like the speakers are blown did you have sound there before or is this somthing that just happend. I would try a new speaker if the problem is still there check the wires for breaks.But sounds like a blown speaker also find out if there is a factory amp and if you have done any new wiring to the sterio check that aswell hope this helps.
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