Here's a diagram I did for getting the Nav audio to work with an aftermarket HU.
I used an Alpine SBS-0715 speaker as my output, and mounted it behind me in-between the seats.
I'm using the audio interrupt line on my Alpine HU to mute the audio for the Nav.

Let me know if anyone has questions, comments, flames etc...

Mikey

 

Here is my thread concerning another way to do this using an npn transistor and a 12v relay (about $5 worth of parts). I found my navi mute output from the factory nav to be almost 8 volts, so opted for a different, possibly safer, approach, since the voltage was above the 6v relay threshold.

Anyways, here's the thread:
https://my350z.com/forum/showthread....threadid=18919

 

Did you use the 6V reference line? Or are you taking the output direct from the Navi audio?

Thanks,

Mike

 

I am taking the "Mute" output line from the factory nav output to basically have a transistor switch the ground on a 12v relay which then switches the ground to the aftermarket head unit mute line. I felt that since the mute output from the factory nav was almost 8 volts and over the threshold voltage for a 6v relay, that it would be safer to switch ground through an npn transistor to activate a 12v relay which then switches ground to my Pioneer head unit.

For audio outputs, I am using the 2 high level ouput leads which run directly to a 4" speaker mounted under the drivers seat. I had to turn the navi volume up 2 notches, but it works fine, and is working exactly like the factory nav/audio did before I ripped out the Bose equipment.

 

Here is a shot from the service manual of the 6V reference line I was speaking of. Hence, the need for a 6V relay.

And by the way, thanks for crapping on my thread. There's nothing "unsafe" about my design.



Mike

 

I never meant to say your design was unsafe, and by no means did I state your design was crappy. I may have implied it was unsafe due to the fact that it may not be reliable due to overdriving the relay coil. By the way, I have found several errors in the FSM already, and because it states a 6 volts reference doesn't meant that it is actually 6 volts. That is why I measured the reference line output line from the nav control you are talking about, and mine was close to 8 volts. That is the only reason I went with my approach versus yours. I too, had a 6 volt relay ready to use, and I was hoping to do the same thing you did until I made some measurements, and at that point I changed my design.

Take no offense to my comments, but I do know that driving a relay out of its spec'd threshold range is not as safe as my approach. I will say that your design is easy, and may be perfectly safe if you use a good relay. Yours is far easier to install, requires no soldering, and can be done by any DIY'er or novice. Some slight electronics knowledge is requireds with my design, but with a good schematic, my approach is jsut as easy to install.

Sorry for pissing in your cheerios, and I never meant to do that. I just wanted to point out thjat that reference line is not 6 volts like the FSM says...

 

Mikey,
For us EE wannabees...... and to prevent meltdown of any new stereo components........
your new device is placed in the compartment that contains the factory Nav system and you ran a wire from the NAV unit (pin #24) to the coil and then (through the console) to the Audio Interrupt line on the HU.

and then...
a wire from the NAV unit (pins 30 & 32) to the new speaker inputs.

Am I correct?

 

I made a box containing the relay, and ran 3 wires from it. One for the ground, one for the 6V input from the Nav system, and one to the audio interrupt on the Alpine HU. This box fit in the area behind the head unit, down behind the white box at the bas of the center console.

Hope ths helps, let me know if you have more questions.

Mike

 

Do anyone know how to convert the Nav system so it will play regular DVDs? Email me @ underwayent@yahoo.com

 

The factory nav is not and was never meant to play DVDs...there is no hack or mods to make it do this as of yet...

 

hey guys just wondering if these instructions are good for the 2006 touring model?