auditorium amplifier wiring - Maserati Forum
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post #1 of 29 Old 07-31-2009, 01:55 AM Thread Starter
 
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auditorium amplifier wiring

Does anyone have a diagram of the auditorium amplifier wiring or pinout for the connector? My amp is blown and I want to replace it with an aftermarket. I guess what I really want is to know where to tap into the speaker outputs of the NIT at the auditorium amplifier input so I can redirect them to a different amp. Thanks for any input. maserati wants like $1500 to replace this thing. I can buy a new amp and subwoofer for much less than that!
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post #2 of 29 Old 07-31-2009, 09:40 AM
 
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My Auditorium 200 amplifier connects directly to the car wiring via a bundle of cables on a big "plug".

Why not buy a new amplifier from eurospares? I think it costs 400 british pounts.

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post #3 of 29 Old 07-31-2009, 11:39 AM
 
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"Top Secret" NIT connections..... Actually a standard ISO 10487 cluster....
The NIT connectors are upsidedown from the drawing but are standard A, B and C connectors. The NIT does not have the D (NAV) connector.

Speakers are in connector B

Pin 1 - Right rear speaker +
Pin 2 - Right rear speaker -
Pin 3 - Right front speaker +
Pin 4 - Right front speaker -
Pin 5 - Left front speaker +
Pin 6 - Left front speaker -
Pin 7 - Left rear speaker +
Pin 8 - Left rear speaker -

Connector C:
Not sure if the line-outs are present on the NIT but I know the CDC connections are correct. Great place to tap-in an iPod.

C1 - external amplifier or equalizer
Pin 1 - Line out left rear
Pin 2 - Line out right rear
Pin 3 - Line out ground
Pin 4 - Line out front left
Pin 5 - Line out front right
Pin 4 - +12v switched - maximum 150mA
C2 - remote control
Pin 7 - RXD
Pin 8 - TXD
Pin 9 - Chassis ground
Pin 10 - +12v switched - maximum 150mA
Pin 11 - Remote control in
Pin 12 - Remote control ground
C3 - CD changer
Pin 13 - CDC data in (bus)
Pin 14 - CDC data out
Pin 15 - CDC +12v permanent
Pin 16 - CDC +12v switched - maximum 300mA (+A)
Pin 17 - CDC data ground (+U)
Pin 18 - CDC audio frequency ground
Pin 19 - CDC audio frequency left
Pin 20 - CDC audio frequency right
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2005 Nero Coupe' CC Vintage
2005 Audi A8L Quattro
2005 Toyota Tundra Crew Cab

Last edited by BeeYouZeeZee; 07-31-2009 at 12:27 PM.
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post #4 of 29 Old 07-31-2009, 12:59 PM Thread Starter
 
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thanks buzz

thanks for that super quick reply. maybe you can answer these questions for me:

I think the auditorium amp is above the battery in the trunk, is that correct?

my plan is to put a new two channel amp using high level inputs from the NIT speaker wires as the input and have the new amp drive focal speakers I already have in the doors. I guess I need to know about the connector that attaches from the NIT to the amp or the colors of the various speaker wires to tap into those. Do you know what they are?

Finally, I plan to put an infinity supwoofer in the trunk. Again taking the high level speaker outputs of the "rear" speakers from the NIT and directing them to the amplified subwoofer inputs. I think I can do this without tearing anything out of the interior at all, just all the trunk liners.

So you see, I really need (if my plan is do-able) a way to identify those NIT speaker wires where they plug into the auditorium amp.

PS do you think this setup, NIT directly into the high level amp inputs will blow out my NIT? In this setup, no speakers will be directly attached to the NIT at all. I will not utilize the rear deck or rear side speaker.

thanks alot, I can't believe this info isn't available on the web anywhere. (but perhaps here!)

JJ


PS regarding the $600 replacement amp, all the above will cost less than than and likely sound much better.
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post #5 of 29 Old 07-31-2009, 01:09 PM
 
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The Auditorium 200 amplifier is behind the back seat, accessed from the boot, not close to the battery (which is on the far right of the boot).

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post #6 of 29 Old 07-31-2009, 03:07 PM
 
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Don't know anything about the amp or its connector.

Might be on the back of the gas tank.

Here's a pic to help.
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2005 Nero Coupe' CC Vintage
2005 Audi A8L Quattro
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post #7 of 29 Old 07-31-2009, 03:16 PM Thread Starter
 
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thanks again

Well I've ordered the stuff. I'll try to post some pics of the project (if it works that is)!

Thanks for the info.

JJ
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post #8 of 29 Old 07-31-2009, 07:49 PM Thread Starter
 
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another diagram

here's one just like buzz's except has nice pictures of equipment at the bottom

http://www.pinout.net/browse.php?catid=19&conid=378
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post #9 of 29 Old 08-30-2009, 02:06 PM Thread Starter
 
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replacing the amp

this is where I am now:

removed all the trunk lining
removed battery
loosened some wiring harnesses
found the 4 10mm nuts holding the amp in place (it is over and behind the battery on my coupe)
removed and unplugged amp
attached heavy duty 12v 8 guage wires to battery and ground
routed existing amp connector harness to front of the battery for easy access
put all the lining back in.

so I have this dead amp with a connector in situ. I plan to rip out theconnector, solder new leads to it and run them to the new amps for both inputs (low level) and outputs (amplified)

here is what I see on the connector on the amp which has tiny numbers for each pin:

1. BROWN 10. YELLOW 18. YELLOW/BLACK
2. BROWN/BLACK 11. WHITE 19. WHITE/BLACK
3. VIOLET 12. EMPTY 20. EMPTY
4. VIOLET/BLACK 13. BLUE 21. BLUE/BLACK
5. GREY 14. WHITE/ORANGE 22. PINK
6. GREY/BLACK 15. EMPTY 23. EMPTY
7 GREEN 16. EMPTY 24. EMPTY
8. GREEN/BLACK 17. EMPTY 25. EMPTY
9. RED BLANK SPACE 26. BLACK

I believe, but hope one of you guys (gals?) can clarify the following:
1-8 being small guage wires are probably right and left front and rear low level inputs (but I don't know which is which and that is a proble.
9 is a large guage red wire which must be +12V
10/18, 11/19, 13/21 and 14/22 are larger guage wire pairs which are likely the amplified outputs to the speakers and 26 is a large guage black wire for -12v.

If anyone can shed more light on these, ie: which pair is which pair I can solder up a replacement loom to the scavagned connector from the blown amp and wire up my new amp/subwoofer pretty easily. Thanks again for your help.

JJ
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post #10 of 29 Old 08-31-2009, 02:34 PM Thread Starter
 
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high level inputs

Since the back of the NIT has only the speaker plug occupied and not the low level output, then I can only assume I have high level speaker outputs going from from my NIT into the defunct amplifier. I guess I can just jury rig a speaker and sound out the various wires there to identify what is what, ie: RF, LF, RR, LR.

JJ

2004 Cambiocorsa Coupe

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post #11 of 29 Old 08-31-2009, 08:36 PM
 
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Jalan,

I'm on the same boat you are. Trying to figure out what all of the pinouts are. When I recently purchased my Coupe, the original owner had the professional installed custom stereo equipment taken out. I was able to get pictures of the items taken out. One of them was an AudioControl LC6 Six channel line output converter.

This went to 1 amp which then feeds to four JL Audio 6" Subs mounted in a custom enclosure in the side walls of the rear passenger area (2 on each side).

The next amp feeds the doors and rear deck.

Still trying to figure all this out as I bought exactly what was taken out.

Cheers,

Guy

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post #12 of 29 Old 08-31-2009, 11:07 PM Thread Starter
 
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still figuring it out

I don't know if it will apply to what you are working on, but in my case, I plan to use the factory auditorium amplifier harness. I am certain that the connector gives access to the NIT speaker (high level) outputs and the factory speakers. my new amps will simply be in a loop connecting the pinouts from the NIT to the speakers just as the factory amp did. At present I have removed the connector from the amplifier chassis and am soldering up leads to connect to the new amps. When I am done, I hope it will be a plug and play operation. I still need to decide which pin does what using a voltmeter, etc.

In any case, I will post the wiring diagram as I figure it out and a photo of my connector/adaptor when its done.

JJ

2004 Cambiocorsa Coupe
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post #13 of 29 Old 09-02-2009, 12:49 AM Thread Starter
 
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all done

I've got the new system installed and hooked up: focal speakers up front, kicker 75 watt amp to power those and infinity basslink in back.

I will post a photo of the set up and adapter I made to plug into the existing harness. I only ascertained the pinouts for those wires I need, ie: front speakers and the NIT front and rear outputs.

I am surprised at the less than dramatic quality increase - the stereo that came in my lincoln navigator sounds much better by far. I am wondering if I have the phase of the door speakers correct.

I have this question: when pushing the right hand knob on the radio you can adjust balance and fader. There are greyed-out setting for loudness and equalizer. How to make these work??? are they non-functional? I would think with the auditorium system they should be available. I don't have the manual for the radio system, just the main car manual. Sorry to be a pest but if anyone can answer this one I'd be obliged.

JJ

2004 Cambiocorsa Coupe
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post #14 of 29 Old 09-02-2009, 04:34 PM
 
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Sadly the loudness/eq is not available to you on the auditorium. No idea why.

You did not receive a big sound quality increase because of the weakest link in your audio setup - the head unit. The stock stereo is TERRIBLE! If you had an aftermarket head unit like an Alpine or Pioneer, you would notice a HUGE improvement, especially coupled with the amp you just installed.

But that leaves a problem: where exactly do you mount a new head unit in the Maserati?
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post #15 of 29 Old 09-02-2009, 05:55 PM Thread Starter
 
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that's wierd!

does the non auditorium NIT offer the equalizer function??? WTF. maybe it can be reprogrammed or something like for NAV system.

anyway after swapping the polarity on the door speakers and tweaking the subwoofer/bass/treble controls, its sounds quite alright. Much better than stock. However the lincoln still has it beat for tight punchy bass and overall sound!


photos when I get a chance......promise

ps, also hooked up the loudlink instead of the cd changer for hundreds of skip-free tunes on hand

JJ

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