Does anyone know if the '02 Maxima with Bose system has an Entertainment Mute Wire? I am trying to install a handsfree kit, and would like to use that option.

Lastly, can anyone recommend a wire to tap into for an "ignition switched wire". The instructions state to tap into that type wire for the handsfree kit.

The kit is a Motorola Handsfree Kit #S9703, installing in an '02 Maxima SE w/ Bose.

Any help would be appreciated.

(I am a rookie wiring guy)

 

For the ignition switched wire, you can get that from the radio itself, which is the wire that turns on when the ignition is turned on.. normally called teh accessory wire.

As for the Entertainment mute, I believe in the NISSAN ESM< there was provisions for a cellular phone, but i doubt it made it to production.

Here is what you can do.

You use a relay, which switches the accessory wire going into the deck.. So when a call comes in, the radio turns off. after the call completes, the radio turns on..

Its a piece of cake.

 

Thank you for the awesome reply. I would like to push my luck if I may. To remove the radio itself. Is there any tips? I have not attempted, planning this project for this weekend. I assume the faceplate just pulls off by grabbing/prying the edges. From there I would assume I will see some retaining screws.

Thoughts?

 

no, you need to take out the shifter/ashtray console below the radio and the vent assembly above it. Then you will be able to access the 4 screws that you need to unscrew that hold the radio in. THEN it will just pull out..it's really easy and takes like 5 minutes to do, tops....

 

do NOT pull on the faceplate, or you will have a broken faceplate....it comes off as an assembly with the climate control module....

 

I am finally ready to tackle this project. But, as a wiring newbie I would like to ask a few more questions:

As for the "ignition switched wire" - any idea which color wire it is for an 02' Maxima SE/6-spd w Bose Head Unit? I assume I can get a voltmeter and test, but as a rookie any help is appreciated.

As for relay wiring: I assume I would use a "T" tap to the ignition switched radio wire to power the hands-free cell-phone car kit, and somewhere up from the "T" tap and closer to the radio, I would connect the hands-free car kit radio mute wire to some type of relay to cut power to the radio when a call comes in. Correct? Not really being familiar with relays, is this relay something I can get at an auto parts store or Radio Shack? Do I need to specify anything special besides for a 12V system. And do you think the radio will turn back on after the call is ended? I am thinking you my have to depress the power button again on the Head unit - thoughts?

Can anyone recommend a "stalk" or "mount" they use in their Maxima to hold a hand-free car kit? The Motorla Handsfree cellphone car kit came with a phone cradle, etc, but I need a way to attach the cradle to the car. And where did you locate yours?

Thanks again for the replies.

 

Relays can be found anywhere.. You only need the 4 prong one, but 5 prongs will do. As for the the wiring.

NO, after the call, you will automatically resume your music, as the stock deck remembers wehtner its on or off.

Connection is simple.

I dont remember the numbers on the relay (87,87a,30, 86) or something, but here goes.

On the switch side of the relay (what makes it turn on and off)
Connect the mute wire from your handsfree to the relay, and then from the relay to GROUND. (ensure polairty is + when phone is on, negative when fone is off)

On the other side,
DO NOT T-TAP, that will defeat the purpose. YOu find the + wire on the stock radio that turns on and off with the key (accessory). Do not cut into the constant + wire. I SAID CUT THE WIRE for the accessory..

Now connect one end of that wire to the relay, and the other end of the wire to the other point of the relay (if memory serves me i think its 30 to 87)

There you go!!

Now pay me damn it!! LOL

 

MiniRX7

Thanks for the reply. I will tackle this weekend, I'll take pics and post as well.


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Can anyone recommend a "stalk" or "mount" they use in their Maxima to hold a hand-free car kit? The Motorla Handsfree cellphone car kit came with a phone cradle, etc, but I need a way to attach the cradle to the car. And where did you locate yours?

 

Well, my hands-free car kit is in. I will post pics soon.

I was not able to get the relay to work to interrupt the power to the radio when a call comes in. I now understand how a relay works, I just cant make it work. I bought a 5AMP relay and when a signal is sent form the phone entertainment mute wire is does not appear to be strong enough to trip the relay to the "open" position (cutting off the radio).

Until I can figure it out, I have run an extra long accessory wire from the power source to the radio so I can tap into the radio accessory power wire again without having to remove the radio. I still want to get the mute option to work.

In case someone else does this, the accessory power wire on my 02' Maxima SE w/ Bose is a purple wire w/ a silver stripe located in the top row row of a 12 wire plug.

Everything else in the install went well, removing the radio was much easier than anticipated.

Thanks for all the tips. Especially - MiniRX7

 

Hey no problem,

I dont understand how it can't trip the relay, the relay only requires like few millamps if that to be triggered. I wish i remember the numbers ont he relay

 

Don't worry about the numbers.

What I did was:

Ground wire to one side of coil. Entertainment mute wire from phone to other side of coil. Then I cut the accessory power wire from the radio and attached one half to the "normally" closed pin, and the other half to the "common" pin.

I hooked it up this way and the radio operated normally, but, did not shut off when a call came in like I had hoped.


MY/Your theory was - when the entertainment mute wire sent power when the hands-free kit as it received a call then relay would go from "normally closed" to "open" breaking the accessory power to the radio. When the call ended power from the mute wire would end causing the relay to fall back to normally closed" causing the radio to resume.

See attached pic for a wiring diagram of the relay I used. The relay I used has a whole extra set of pins to make either another normally closed or normally open circuit. I just disregarded those pins.


As you said, the radio does remember if it was on or off, as I had disconnected the accessory power multiple times.

I am still at a loss.



Some things I am still unsure of:

Why would my Motorola Hands-free Car kit have a constant power wire and an accessory power wire? Why not just accessory, so it just turns on with car. I ended up just hooking the constant power wire of the kit to an accessory source (cigarette lighter power supply). I did not even hook up accessory power.

Any thoughts.

The included directions do not tell me a thing.

 

Trying pic again:


Unable to add pic. Attachment is a 28K JPEG file?????????????


well the relay schematic looked like this:

Orange is my handfree mute wire, purple is the radio accesory wire, black is ground wire.

Legend:
Entertainment Mute wire pin = EMP
Ground pin = GP
Normally Closed Pin = NCP
Normally Open Pin = NOP (did not use)
Common Pin= CP

EMP GP

NCP NCP

CP CP

NOP NOP

I attached to the phone mute wire to the EMP and and a ground wire to the GP for the "coil"

Then to the right hand side of the relay I used the NCP and CP pins. I attached each half of the accesory power wire, one to each.

 

HERES A THOUGHT!!

are you sure the entertianment wire is a positive? maybe its supplying a ground.

Did you use a test light or something to determine what happens with the entertiainment wire during a call?

ALSO, the purpose of the two power wires is that when the MOTOROLA loses power from accessory, it uses the constant power to recharge the phone, and if it was anything like my NOKIA kit, when i turned the ignition off, my cell phone would also TURN OFF in 30seconds, and then just recharge. When i started the car, the phone would turn back on . THis is accomplished using the two separate power wires. I recommend you follow that.

 

As you can tell I am a rookie at wiring, I don't know how to really use my volt/ohm meter (looks good in my tool box though!)

When I probed the orange entertainment mute wire by placing the red probe of my meter to the end of the orange wire, and the black probe of my meter to a ground, and my volt/ohm thing was set to 20V DC - it read like .015 and around there when call in progress, don't know what that means. When there is no call, it read zero. Thoughts?


As for the two power sources, wow thanks! I will just hook up the phone kit accessory wire to the lighter, and try to find a constant power for the other power wire (suggestions on location for that?).

 

I read this on another thread about a Motrola handsfree kit:

"The hands free unit's mute signal is normally an open circuit, but closes a circuit to ground when the phone is active. "

So maybe my mute wire is a ground. But, now I don't understand how to wire the relay.

 

SpottyJ

its simple, if the mute wire is ground, then all you need to do is wire the other side to a POSITIVE!! LOL...

Now send me a beer!

 

Well, I/we got it to work!


I removed the ground from the relay and replaced it an accessory power source. It works great!

I also re-ran the power wires a MiniRX7 suggested, and that works too. Go figure..............


I really appreciate all the help.

Once I figure out why I can't post pics, I post some pics (make sense?).


Oh, and MIniRX7 - When you are up in New Hampshire, I owe you a beer, or two.