my install guy told me there must be a way to hook up sound to your new headunit... if sound is going to your existing headunit then it is possible to do the same with your aftermarket unit.

dont give up now! it must be possible...

but he hasnt done it so dont quote me on it... honestly, there must be a way.

im sure someone on this forum with navi installed a new headunit! im gonna start a new thread

 

I have my nav voice intact. I used a seperate speaker for the nav voice. When the prompts come on, the deck mutes and the sound comes through the speaker.

Check my sig for a link to my system. The speaker is mounted right below my headunit.

The following post isn't mine, but it should help some of you out. Also, this post was for the 03-04 cars, so i'm not sure if anything has changed with the new models. I'm just posting it since it should give people an idea as to how this task can be accomplished.

Here is the post about the process. It is from My350z.com. I'm not sure who the original poster was though. I had it saved on my computer a while back:

Linking the factory nav system to a new head unit...
For those of you trying to install a new head unit in your Z, but keep the existing factory navigation system, and keep the voice, the info below will work ! THis is what I did, and it works great, just like the factory navigation system does. Keep in mind that you will have to have a Mute capable head unit, and you will have to wire a seperate speaker for the nav voice. A small price to pay for the much better sound you will get out of an aftermarket head unit.

Anyways, here is what I did:

The output of the NAV system is about 7.5-9 volts. This is not enough voltage to trip a standard 12 volt (30A) relay. So, what I did was this. You have to setup a 2 stage system, composed of a transistor and 12v relay, to switch the mute circuit on a new head unit.

Parts I used:
1. Potter and Brumfield 12V Relay (Bosch will work too)
2. TIP31 high power NPN Transistor (Radio shack sells it)
3. Various length wires and crimp-type connectors
4. 1 kohm resistor (1/4 watt)

NAVI-SYSTEM WIRE MAP:
Mute wire from NAVI control to head unit - R/B
NAVI earth ground - B/P
NAVI Voice input + L/B
NAVI Voice input - W/B

Transistor circuit:
All transistors consist of a Base (B), Collector (C), and an Emitter (E). The pacakge will tell you, if you buy it from ratshack, or look online for a datasheet for your transistor. THis circuit will work for an NPN only. A pnp transistor will be wired differnetly, so make sure you get the proper parts !

1. Wire Mute (R/B) from NAVI control to the transistor Base (B) through a 1kohm resistor (Limits the current so you don't fry the TIP31).
2. Wire the Emitter (E) to vehicle ground
3. Wire the collector (C) to postion 85 on 12V relay

Relay CIrcuit:
1. From 3 above, wire the output of the collector to position 85 of a 12v relay.
2. Wire postion 86 to 12v switched by the ignition (only on when key is on)
3. Wire postion 30 of the 12v relay to vehicle ground
4. Wire positon 87 of the 12v relay to mute input on the new head unit.
5. Position 87a is not connected

Here's what happens:
When the voice control turns on for the navi system, it send the R/B wire high (7.5 volts). This voltage triggers the transistor to open up, and essentially provide ground to the relay. Once the relay is grounded, the relay is energized, and switches the constant ground (suppleid by terminal 30) to position 87, and supplies a ground signal output from the 12v relay. This ground signal MUTES your new head unit. THat's all...simple circuit, great results !

Don't forget that you will have to add a seperate speaker for navi voice under your seat, and run the 2 voice output wires from the navi control to this speaker. If you mount it under the driver's seat, you may have to turn the volume up slightly to hear it...

Good luck, and I hope this helps those who are adding aftermarket headunits to a Z with factory navigation...

 

thanks audioman!

so it can be done, but with a little work.........

 

little ? hehe

 

yup. it is definitely possible. Just gotta be willing to put the time, effort, and $ into it.

 

Hi! I have some questions regarding the DD!
(FYI, I have a 05 sedan)
What is the total price for the DD+ Nav?
Are there any other choices other than this Nav?
Will I be still using the stock Bose audio system after I have installed the Nav?
Does the control button, eg, volume, seek, power etc still works even with the Nav installed?

I guess some of the questions were asked before, but seems the answers are only true for 03/04... so, I want to make sure if this is the same case for 05.

Thanks!!

 

the dd unit just allows you to put any aftermarket head unit in your car... you dont need to put this particular navi/ dvd unit in.

yeah, since youre putting in a new headunit, the BLOSE system will have to come out.
but your speakers and stuff stay. you can also still use steering wheel controls if your new unit accepts a remote control!

the DD kit is around $400.

 

Thanks for your reply, GRider! which Nav's are recommanded (which matches DD)? I guess most of them comes with MP3 CD player functin these days... Which Nav are you using? and how much is it? does it comes with touch screen function?

 

you can put any aftermarket headunit in the dd kit...

mine is the Eclipse AVN, yeah its touch screen... retail is around $2500. yeah mp3, dvd, navi, am, fm, cd... i can even plug in those portable pac-man games, will do and take pics soon! lol

this one is popular but alot of people like the fold-out kinds...

 

Thanks for your infromation, GRider!!

 

INTRODUCING GRider.....the next DD conversion expert!!! lol


I'll give you a ring to meet up wed, May11th?

doc

 

sounds good doc... cant wait!

 

Hello I am NB here at this forum. I was reading your posts and was wondering what you guys will do with the old stock 2005 receiver. I have a 2004 G35 and want to know if the 2005 can fit in the 2004, obviously with minor modifications. Also, I was wondering if you guys would be willing to sell the old stock receiver. Thanks

 

Has anyone figured out if this can be retrofited into the 03-04?? it sure looks nicer than my 04.

 

it will fit but its not minor, its MAJOR!...

im not selling mines, after i totalled my 04, they made me put the original back in and im glad i kept it!