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Discussion Starter · #1 ·
Hey all. I took the dash apart again in my 2002 and found out that the Bose head unit seems to have an 8 pin DIN jack on the back for a Panasonic CD changer. This was all spured on by Mistral's Thread in where he took out his non-Bose radio and found the same thing. Please click on the link below to take a look at my web site to see what I learned!

http://fluxu8.nismo.org/images/carapart/photo2.html

 

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2002Altima

Hey hows the leather install going? I can't wait to see your pics and write up of that.
 

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-=JRC=- said:
2002Altima

Hey hows the leather install going? I can't wait to see your pics and write up of that.
2002Altima already has leather. My install is waiting for my springs to arrive so I can do several mods at once. I put the headrests on in about 5 minutes though. I'll post the big pictorial when I get it all done.
 

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Excellent documentation! Thank you very much!

Clearly there is an auxiliary input jack. Lets assume any line level audio signal could be plugged in there with the right plug. The next question is: Does either the Bose or the single-disk stock unit have a setting/control to access an auxiliary input source? It is possible that when a device is plugged in there it may trigger a hidden display, or even tell the base unit what it is, and what is to be displayed.

As for the extra space:

How about a hard-drive based MP3 source? Add a USB or firewire jack to the cover, and you could upload/change music from a laptop or other MP3 device so equiped. The LCD display on the base unit would need to then be able to dispay song info. Does it look like the LCD has much more information capacity?

Many people here have asked about feeding their own MP3 players to the car's sound system. This auxiliary DIN might be simply brought forward to an 1/8" stereo jack you could mount through the cover (or down next to the power jack). Label it "Aux Line In", and you could plug any audio source into it. Of course, the base unit would need to "know" something had been plugged in, and switch to playing sound from that source.

Satellite radio is another good thought. There ought to be enough room for a decoder unit, and the extra plug might contain leads for whatever antenna a satellite receiver would need.

Ultimately, it would be nice to get someone from panasonic to explain what and how the aux DIN can be used. Maybe there is a techincal document to be found somewhere.

Again, thanks for the research. Finding something to plug in there has now become my mission!

OpalBlue
 

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Below are the pinouts as labelled on the small circuit board:

NC.
R.in+
R.in-
GND

NC
L.in+
L.in-
GND

AUX.in
COMB.ON

Obviously for any one channel of sound you need one input and a ground. In that case, the specific AUX lead seems to be mono, not stereo. But there are left and right inputs, obviously. In theory there are enough inputs for 5.1 channels. Aux for bass, R+ and L+ for front right and left, R- and L- for rear right and left, and COMB (combined?) for the single center channel speaker.

5.1 channels is used with DVDs, so perhaps its a DVD player/decoder. The DVD unit itself would have video feeds to a monitor. It's even possible that the stock or bose CD drive is actually a DVD/CD reader. That would then only require the decoder and a video output.

Food for thought.

OpalBlue
 

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by 2002Altima Hey all. I took the dash apart again in my 2002 and found out that the Bose head unit seems to have an 8 pin DIN jack on the back for a Panasonic CD changer. This was all spured on by Mistral's Thread where he took out his non-Bose radio and found the same thing. Please click on the link below to take a look at my web site to see what I learned!http://fluxu8.nismo.org/images/carapart/photo2.html
2002Altima: What is the smaller round connector on the left of this image labelled and/or used for? Antenna?

OpalBlue
 

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Discussion Starter · #9 ·
Re: Re: Bose/non-Bose Radios seem to have CD Changer Connection

OpalBlue said:
2002Altima: What is the smaller round connector on the left of this image labelled and/or used for? Antenna?
OpalBlue
You are correct. It is for an antenna.

I am under the assumption that the 8 pin only has left and right channels.


You know how 1 speaker wire will have two leads
The L- would be the left negative or black wire
The L+ would be the left positive or red wire.
This would make up the left chanel

I was told in the other post that NC means No Connection. It's not used.

When connecting a car amplifier to a head unit, there is a blue lead that is a communication link from the radio that says when the radio is on, turn on the amplifier. My best guess is that is what the COMB.ON pin out is.
 

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Re: Re: Re: Bose/non-Bose Radios seem to have CD Changer Connection

by 2002Altima I am under the assumption that the 8 pin only has left and right channels. - When connecting a car amplifier to a head unit, there is a blue lead that is a communication link from the radio that says when the radio is on, turn on the amplifier. My best guess is that is what the COMB.ON pin out is.
That still leaves the AUX input, and possibly the COMB.ON. I'm also guessing that COMB is for Communications port "B", and a signal here would act as a trigger to switch the base unit to the DIN inputs. But a single signal could be +, -, or nothing, leaving three options. The options might be: 2-channel source; AUX source; and OFF. AUX cold be for AM or Mono radio. If truly a COM port, it might be the path for song and station info to be displayed on the LCD from a satellite radio receiver.

You know how 1 speaker wire will have two leads
The L- would be the left negative or black wire
The L+ would be the left positive or red wire.
This would make up the left chanel
Agreed, but it is also possible to have stereo with two leads and a common ground. This would let + and - inputs be alternative sources.

I was told in the other post that NC means No Connection. It's not used.
Agreed. There are only 8 pins, and there are eight other labels.

Time will tell. Again, it would be nice to get factual info from Panasonic about how that DIN input should be used.

OpalBlue
 

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Are these units actually made by Panasonic? I bought an indash 6 disk changer for the previous Altimas and will be trying it in mine when it shows up...Since the pinout din connector and the main wiring units appear to be the same as previous cars, I am beginning to question whether the previous units were actually made by Clarion or not....

In the previous Altima, when the changer was plugged into the head unit, the controls on the front of the changer took over from the head unit...If the radio is playing and you had a cd in the changer and pressed the play button, the cd woud start playing. That eliminated the need for a cd button/selector on the head unit... Now granted this unit's size doesn't allow for another in-dash unit like the older Altima, but if you replaced the radio cd unit itself and fabricated a plastic or aluminum faceplate to allow two single din openings or a double-din opening you could install any unit you wanted...I know Blaupunkt makes an indash changer and Kenwood makes an indash minidisc changer....I guess the a,ternative is to install the head unit with the single din adapter that available and mount a remote changer somewhere else in the car....
 

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Discussion Starter · #12 · (Edited)
Well, I called the Panasonic hot line. Don't waste your time. The guy told me that I shouldn't open up their products and I should take it back to the person who installed the radio so that they can take it out and send it to a repair facility. SHEESH!!

I said, "IT'S THE FACTORY RADIO. I TOOK IT OUT BECAUSE I'M CURIOUS, NOT BECAUSE IT'S BROKEN!"

Anyways, he tried to locate the model number and could not. I have also been searching the internet and cannot find the model number.

I did find an interface company. They sell the cables to attach to factory head units. I did find on the web that 2001 Volkswagens have a Panasonic built head unit with an 8 pin jack on the back of it. This could be the same usage. The following company provides the cables for you to connect different manufacturers CD changers, dvd players, and mp3 players. Here is the link: http://www.blitzsafe.com/blitz_catalog/blitz_catalog.html


PS - If you opened the radio up in your car, took a multi meter or a simple continuity tester, you can put one lead into the pin and the other lead to the circuit board and find out what each pin does in relation to the markings on the circuit board. Then you could make your own cable.
 

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Discussion Starter · #13 ·
merkurman said:
I guess the a,ternative is to install the head unit with the single din adapter that available and mount a remote changer somewhere else in the car....
I am personally happy with having the 6 disk in-dash changer. That's enough for me for right now.

I would like to make this plug be Aux Inputs for other devices such as a DVD player or MP3 player. This will probably require fabricating my own cable.
 

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OpalBlue said:
Below are the pinouts as labelled on the small circuit board:

NC.
R.in+
R.in-
GND

NC
L.in+
L.in-
GND

AUX.in
COMB.ON

Obviously for any one channel of sound you need one input and a ground. In that case, the specific AUX lead seems to be mono, not stereo. But there are left and right inputs, obviously. In theory there are enough inputs for 5.1 channels. Aux for bass, R+ and L+ for front right and left, R- and L- for rear right and left, and COMB (combined?) for the single center channel speaker.

5.1 channels is used with DVDs, so perhaps its a DVD player/decoder. The DVD unit itself would have video feeds to a monitor. It's even possible that the stock or bose CD drive is actually a DVD/CD reader. That would then only require the decoder and a video output.

Food for thought.

OpalBlue
I think you're on to something there, OpalBlue ...
for those who aren't quite sure ... NC simply means not connected. The Comb connection could either be used for surround sound (as in 3d surround sound) or, possibly, a center channel subwoofer. I also like the Idea of either a HDD MP3 source with firewire/USB upload, or an external MP3 jack , or both ... it could be done ... bue as was mentioned earlier, will the controls recognize it (major sticking point)and will the display be able to read the file info (minor sticking point ... that's why there's a music scan feature :D )

you guys have given me some ideas/food for thought ... think i'll check out info on the Panasonic DIN connection and how to get a bidirectional control signal ...(maybe the aux line)
 

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Discussion Starter · #15 ·
A little bit more info...

Acording to the carpoint.msn.com website, in addition to having the "Bose" in-dash 6 disc changer, you can add an
"In-Dash 6 Disc CD Autochanger (Mfr Code #CD2)
(Dealer Installed Option)

In-Dash Cellular Phone (Mfr Code #CP)
(Dealer Installed Option)

Trunk Mounted 6-Disc CD Autochanger (Mfr Code #TRC)
(Dealer Installed Option)


The dealer might have what you are looking for.
 

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This sounds suspiciously like the description of the earlier Altimas withthe black plastic pocket under the head unit.... Actually there were two units; a 6 disc in-dash unit and a remote mounted 6 disc changer with a control head that mounted in the area that the pocket occupied... This description doesn't address the 2002 Altima I don't believe...

I know the previous units were made by Clarion... I am not certain that they still are... Especially with what Altima2002 found on the unit and the circuit board... i disassembled an old head unit i have at home and the 8 pin plug seems to have the same legend as the newer unit but it's not as well labeled as the new unit....
 

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Wild Guess

I'm gonna take a wild guess, and bet that the 8-pin connector on the rear of our base units is a fairly standard input. And that any experienced Auto Sound installer will be familiar with that input.

Since we've deduced that there are "dealer installed" options, including an in-dash 6-disk changer to work with the non-bose single disk unit, That input jack HAS to be the connector to make such units compatible. A CD changer would only use two (stereo) channels, probably the L and R inputs. Another option available is a Cell phone. The cell phone adapter undoubtably uses the AUX input, as it is a mono input. There may be a dash mount microphone in the cell phone kit, to allow hands-free phoning. In both cases, I'm betting the dealer has a new console cover panel to replace the stock one, neatly revealing whatever controls/slots/etc., the new devices require.

Now the question is: Can we create our own input jack using this 8-pin connector, and expect the base units to "know" when somthing is connected and it is on? I'd hate to learn some sort of logic circuit is required. ;-(

This curious mind wants to know.

OpalBlue
 

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The spot above the stereo looks llike it was originally designed to be a CD holder. I remember seeing a picture of the Altima in the original brochure that had the aluminum center console. It looked like it was just a popout CD case similar to the Acura TL.

However, I think during the final cost cutting process, that was removed along with the fancier 17" wheels - look at the picture in the upper left hand corner and the small holes in the headlight lens.

I'm sure there were other things but the main point is that the slot above the stereo was a CD holder.

We don't have CD changer controls in our Altima.. like the old Maxima, etc.
 

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But don't forget that the previous Altimas didn't need changer controls on the head units...The controls were on the indash changer/player or in the seperate control panel that was dash mounted in the remote changer. When you pressed the play button on the cd player/changer, the cd overrode the radio or tape functions and played a selected cd. Even if the radio was off, if you pressed the play button, the cd would play... Very similar to if you popped a cassette into an off unit; it would start to play the tape...

I was looking to install a changer on the non-bose system but I do not have the space to mount the indash changer, if indeed the previous changer would work...If I replaced the non-bose unit with the aftermarket unit, I can still only install the head unit in the dash and must use a remote mounted changer since the only adapter doesn't utilize all the space in the dash.....If I machine an aluminum adapter to open up the 2 din opening in the dash, I could mount a blank pocket like the previous Altimas had....Or use a dash mounted changer with the aftermarket head unit...

I believe the steering wheel mounted remote controls are just infrared...If so they may be able to work with an aftermarket head unit of the same mfg. as the current unit.....I haven't looked to see if the wheel controls are hard wired or not....
 
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