I bought the car used. When i got it the front speakers would intemittently work. I took it to the dealer and they replace my navigation system. That didn't work. I took it back again and they said it was the radio. They replaced it. That didn't work. What can it be? It comes on and off at will. Its not like I hit a hard bump and comes on or off it just does it. Any ideas?

 

not sure but be happy they can't figure it out let them keep replacing parts

new free nav
new free radio

have them replace all new speakers now

 

Haha couldn't agree more

 

Is it the factory Bose system?

 

short

 

Yes its the factory bose with cd/cassette. I wouldnt mind but its a pain to have to waste so much time at the dealership. In addition you cant be cool with only your rear speakers working and the navigation voice doesnt work at all

 

As 350ZSPL said, it's probably a short somewhere. The Bose I think has an outboard amp which powers all the speakers. So it adds to the complication of finding the issue.

 

trace each wire one by one to diagnose

 

well if everything has been replaced i would say its your amps,

but both speakers at the same time?

 

Its all the front speakers. The only ones that work are the rear circular ones and the sub. Then just pop on. They dont work on start up. I have never had them go off while driving only when I turn the car off and then get back in. They will sometimes be working and sometimes not. On the times they dont work on start up if I drive long enough they will just come back on

 

If you turn the navigation system ON, will the H/U (radio) play music through the front speakers?

This is only a guess, but it sounds like a bad resistor.

--Spike

 

I would bet amp....just go aftermarket he he

 

Well I had the same problem. The speakers in my car were just bad. Bought some new ones today and they work fine, little bit of a fitment issue though...

 

I think you may be on the right track. If the OP’s Nissan dealership was willing to install a new navigation module and then a new radio (and I assume they did not charge him for this), why not do the next step which is swapping out the Bose amp for a new one? If in fact it is a resistor problem, changing out the amp will probably fix this. If the external amp is the problem, swapping in a new one is also a fix. Of course the Nissan dealer will insist upon installing the crappy and little Bose amp, but if it’s free….

I’ve been thinking more about the OP’s problem. I had the identical problem, but mine involved an aftermarket installation using a Garmin GVN52 (that has a mute wire) and a Clarion DXZ745MP H/U that did not support this (the Clarion model I have does not support a mute wire). My solution was installing a peripheral device that controls input from multiple players. The problem I had was putting in resistors with the correct ohm’s of resistance.

The Nissan Bose CES with Navigation must have a device to route two separate sources (the Navigation’s voice guidance and sound from the H/U) to the front speakers in the Z’s sound system. The device probably connects between the H/U and the Bose external amp. I think this is where things are going wrong.

Your idea (swapping out the amp) is probably the fix.

--Spike

 

GOOD NEWS!!!! It was the amp. After posting this thread I took the car in and told them to look at the amp and they replaced that and it works great. Thanks for all the help.