1992maximase30

Thanks!! Here's what confusing. This mod seems to only apply to early 95 and 99 hose head units. All others in between can do the other way.

1992maximase30

Reviving am old thread. My other radio went kaput and in the worse way if all too. So once these wire are hooked up and activated wouldthe display read out AUX or nothing at all or what??

jholley

iTrader: (13)

It will display AUX on your Bose.

1992maximase30

Cool...looks like i got some work to do

1992maximase30

So i tried to hook it up going by that link. Still no go. In fact the only thing it did was just turned the radio on and off. Also that circuit board was different thAn mine.

tmarx88

This is much easier than all that, Just go get yourself one of the cassette tape adapters with the aux wire that plugs into ur Mp3 player or ???

This is what I use on mine, works awesome!

Or get urself a FM Transmitter that plugs into your cigarette lighter and sincs to ur radio. They got some nice ones out there, got MP3, SD card slot, etc. Check it out.

1992maximase30

Yea we got some at my job...i might go the fm transmitter way. I forgot how much better the radio sound compared to the 97-98 model.

tagius

Did the mod on 2006 Max w/Bose system. Only works with IPhone 4 or lower, will not work with iPhone 5 or Galaxy S3. Not sure what's up with it, phone will not even acknowledge the headset input. Any thoughts...

firemax95

That's the way I used to do it, but then the radio part on my HU went out. And then my tape player. So since I know how to solder somewhat, I gave it a whirl. I like it better than using the tape deck since the input jack can be put virtually anywhere in the car.

1992maximase30

So you have a 99 head unit? I was on ebay looking for a factory radio for a friend of mine when i came across my head unit and it has the aux mod. So i know it can be done. But i dont know what Im doing wrong. Its soo easy on the 94-98 units...i don't know why Nissan decided to change the circuit board on the 99...???

1992maximase30

???

cdoublejj

any one done a 2001? i'm about to burn some CD but, i got the car fixed and am in the fixing mood and am thinking of doing this to my 2001 guide or no guide, i know it has a tape deck whihc means it just matter of wiring it in to the magnetic sensor's leads.

i've used a cheap cassette to to head phone adapter, it was low volume with ****ty clarity. i'm sure this helps being wired in directly so way less signal loss but, i have to winder if it will be all for nothing.

EDIT: there is a thread on how to do a 2002, which is notable different but, all units have the tape deck which is what this mod taps in to. you are still limited to the audio quality the tape deck circuits and head unit can out put vs the cassette adapter which si subject to signal degradation and noise. at least with the 2002 thread, he tapped in to the tape deck.

EDIT: http://forums.maxima.org/5th-generat...aux-input.html

1992maximase30

There a you tube video on it. Where it involves removing the radio and solder a few wires.
So the only unit that seems to be hard is the 1999 headunit.

Anyone have any luck with a 99 unit?
PLEASE

1992maximase30

Anyone?

jholley

iTrader: (13)

You've been trying for 4 years to get the AUX operable on your 99 HU but have gotten nowhere. Either bring it to a shop, buy an adapter, or buy another HU.

Throw in the towel and stop giving yourself a headache.

1992maximase30

Sorry. It just irritating that a couple of members here has a 99 hu and were able to do the mod.

swiper

Hi all,
I spent about 3 hours reading this thread and reading other sites about adding AUX to my 98 Nissan Maxima Bose HU. I then spent another couple hours trying to figure out why the sound was so quiet. I wanted to share my experience to hopefully aid someone else and reduce some of the researching.

To take the radio out follow this quide
http://www.installdr.com/InstallDocs...PDF/647021.pdf
or this video

I was able to use the cd changer port on the back to connect the wires. You can find a diagram of the cd changer port on the next link as well as some other information. The benefit of using the cd changer port is that I didn't need to solder the Bose HU and I didn't need to take the HU out of it's case once removed from the console.
http://ryft.org/wiki/index.php?title...Bose_HU_AUX_in

If that link is not working then you can refer to this text explanation.
The cd changer port located on the bottom right on the back of the HU has 2 rows of pins with 12 pins total, 4 pins on top and 8 pins on bottom. Those pins are as follows:
AB----CD
EFGHIJKL
A = left channel input +
B = right channel input +
C = combi->cd (txd)
D = combi-on signal output
E = left channel input -
F = right channel input -
G = ground
H = ground
I = nothing
J = slace-ic request
K = cd->combi (rxd)
L = aux-on signal input

I used female jumper wires. They are wires that have jumpers on each end so the wire can be attached to the pins easily without soldering. I purchased them at radio shack.

The easy part was connecting the single throw single pole (STSP) switch. Simply connect one wire from pin K to the switch and one wire from pin L to the other connection on the switch. Done with the switch. The switch is necessary to tell the radio we will be using Aux.

The hard part was making the audio loud enough. The problem is that Bose uses a differential signal. A pretty good explanation is on this page:
http://forums.maxima.org/audio-elect...se-stereo.html
abridged version:
------
The audio signal received at the Bose stereo is taken as the difference between the + and - signals. If we use the left channel (L) for an example, then in the solution you propose, the signal seen by the Bose stereo would be:
L - 0 = L
(because you connect L+ to L+ and GND to L-)

With the CD changer (and the solution I propose, and any other differential source) you get:
L - (-L) = 2 x L
-----

I started by connecting my audio wires to a female 1/8" TRS jack. I took a head phone cable extender and cut off the male end leaving the wire with the female end for connecting my audio source. The sound was too quiet because there were only three wires L+, R+, and ground which was split for L- and R-. The sound was terrible.

I then switched to using a TRS that split into two RCA connections. I connected L+ (A) and L- (E) to one RCA and R+ (B) and R- (F) to the other. The sound was much louder, not quite to the full volume of the FM radio but close.

I reassembled and everything is working great. I hope this helps someone and is clear enough. I'm basically summarizing what everyone else has already said.

1992maximase30

Makes sense. But your radio 97/98 models are really easy to do. I've had a 98 unit but started having problems with it.

The cd was starting to have problems reading cds (even after i cleaned it).
The tape player started having spasms.
The the hu seemed to confuse the bose or send the wrong signals.

Example : a few minutes of use the interior speakers would go out and only the bose sub would work.
Or the left rear and sub would work or the right front and sub would work or not have a sub at all.

Or the display would go out