'09 5-Door LB - Aux Jack Harness is different.

[IsLNdbOi]

I was about to do this w/ my aux jack today:

http://www.yarisworld.com/forums/showthread.php?goto=newpost&t=9852


BUT the harness end that connects to the back of the aux jack is different than the one on the '07 / '08 LBs. This different / new one in my '09 5-door LB has a square shaped connector instead of a rectangle one AND it has 5 wires instead of 4 in the '07 / '08 LBs. It has these wires:

2x red
green
white
gray


In my '07 LB there were only 4 wires:

2x red
green
gray



Not sure how to do this modification now. Anyone have the service manual for the '09 5-door LBs or know which wire does what?

[CTScott]

I was about to do this w/ my aux jack today:

http://www.yarisworld.com/forums/showthread.php?goto=newpost&t=9852


BUT the harness end that connects to the back of the aux jack is different than the one on the '07 / '08 LBs. This different / new one in my '09 5-door LB has a square shaped connector instead of a rectangle one AND it has 5 wires instead of 4 in the '07 / '08 LBs. It has these wires:

2x red
green
white
gray


In my '07 LB there were only 4 wires:

2x red
green
gray



Not sure how to do this modification now. Anyone have the service manual for the '09 5-door LBs or know which wire does what?

Here's the 09 connector pinout:

http://i372.photobucket.com/albums/oo163/ctscott329/09AuxJack.jpg

[IsLNdbOi]

Thanks! Where did you find this?

[CTScott]

Thanks! Where did you find this?

09 Service Manual

[IsLNdbOi]

Where did you get the service manual? I asked above in the first post.

Also, does anyone know what the code stands for?

ALO:
ARO:
AGND:
ASGN:
AUXO:

I'm guessing "ALO" is for the left channel and "ARO" is for the right channel.

In the '07 / '08 LBs, ASGN was for ground so it's probably the same for the '09. I think "AUXO" is for the HU to sense when something is connected to the aux jack. Now what's "AGND" for?

[mikenacarato]

all i know is i was going to do this too but im glad you found this out before i did. i hope you figure it out

[CTScott]

Where did you get the service manual? I asked above in the first post.

Also, does anyone know what the code stands for?

ALO:
ARO:
AGND:
ASGN:
AUXO:

I'm guessing "ALO" is for the left channel and "ARO" is for the right channel.

In the '07 / '08 LBs, ASGN was for ground so it's probably the same for the '09. I think "AUXO" is for the HU to sense when something is connected to the aux jack. Now what's "AGND" for?


I subscribed to TIS to have access to the service manual.

ALO: Aux Left Output
ARO: Aux Right Output
AGND: Aux Ground
ASGN: Aux Signal Ground
AUXO: Aux Output (switched input to HU to indicate that cable is plugged into Aux jack)

AGND is the shield, where as ASGND is the audio signal ground. I think they added the shield to the 09's to fix the noise issue that some people complained of in prior years.

[IsLNdbOi]

Thanks again CTScott. The audio cable I bought has only the left, right and ground. Can't seem to find the shield on this cable. Didn't have any issues though with my '07's aux jack so I guess I won't bother with the shield this time.

[CTScott]

Thanks again CTScott. The audio cable I bought has only the left, right and ground. Can't seem to find the shield on this cable. Didn't have any issues though with my '07's aux jack so I guess I won't bother with the shield this time.

Are you connecting the Aux jack to a different HU? If you are, instead of cutting in at the aux jack, you can connect to the radio's harness and leave the Aux cable and its shield intact. The connector diagram I posted has the radio side pinout for the Aux input.

[IsLNdbOi]

Great idea! Yes, my goal is to use the stock aux jack with a new Pioneer HU. The Pioneer HU has a 3.5mm auxiliary input on its back. The individual wires on this RCA to 3.5mm cable I have though are tiny (I've already cut the RCA plugs off to expose the wires). How should I connect them to the bare pins of the connector that goes into the back of the stock HU?

[CTScott]

Great idea! Yes, my goal is to use the stock aux jack with a new Pioneer HU. The Pioneer HU has a 3.5mm auxiliary input on its back. The individual wires on this RCA to 3.5mm cable I have though are tiny (I've already cut the RCA plugs off to expose the wires). How should I connect them to the bare pins of the connector that goes into the back of the stock HU?

I would still splice wire to wire (rather than trying to connect to the pins).

[IsLNdbOi]

I think I may have some of these:

http://rsk.imageg.net/graphics/product_images/pRS1C-2266843w345.jpg


that are small enough to work with the pins in the connector.

[CTScott]

I think I may have some of these:

http://rsk.imageg.net/graphics/product_images/pRS1C-2266843w345.jpg


that are small enough to work with the pins in the connector.

If you use an adapter cable to connect the OEM harness to the new HU you won't have space to use anything other than the correct pin for the OEM connector. Although, it would be great if the adapter cable included the AUX wires.

[IsLNdbOi]

I subscribed to TIS to have access to the service manual.

ALO: Aux Left Output
ARO: Aux Right Output
AGND: Aux Ground
ASGN: Aux Signal Ground
AUXO: Aux Output (switched input to HU to indicate that cable is plugged into Aux jack)

AGND is the shield, where as ASGND is the audio signal ground. I think they added the shield to the 09's to fix the noise issue that some people complained of in prior years.

Mind uploading the '09 5-door LB's service manual here?

I looked at the connector on the back of the stock HU that the stock aux jack's harness connects to and the pins on the connector on the back of the stock HU look like needles. I thought that they were flat metal pins. If I solder each wire from my 3.5mm cable to a needle and insert the needle into the corresponding slot in the aux jack's harness connector, do you think that would work?

[CTScott]

Mind uploading the '09 5-door LB's service manual here?

I looked at the connector on the back of the stock HU that the stock aux jack's harness connects to and the pins on the connector on the back of the stock HU look like needles. I thought that they were flat metal pins. If I solder each wire from my 3.5mm cable to a needle and insert the needle into the corresponding slot in the aux jack's harness connector, do you think that would work?

With audio you really want solid connections. I would just strip a small section off of the wire going to the oem connector, wrap the 3.5mm cable's wire around it, solder and tape.

I am going to do this myself to add an Aux-Aux jack inside the driver's glove box. I might build an audio mixer to let me feed my GPS and iPhone simultaneously.

[IsLNdbOi]

What's the trick to stripping just a small section of a wire? The aux jack's harness has very thin / very small gauge wires.

[CTScott]

What's the trick to stripping just a small section of a wire? The aux jack's harness has very thin / very small gauge wires.

The ultimate trick is to use a thermal stripper, which melts the insulation off of a small section.

I use a small knife to make two parallel cuts (just through the insulation), then a cut along the wire, between the two rings.

[mikenacarato]

for reference, the lb is the same way as the sedan. i checked mine last night, 5 wires as well. islandboi did you do this to your sedan yet?

[IsLNdbOi]

Got it done last night. Went ahead and just used T-Taps w/ quick slide connectors. I didn't have to buy a new cable to do this either. I had leftovers from this cable:

http://akamaipix.crutchfield.com/products/2005/119/h119MCON2M-f.jpeg

When I did this aux. jack modification on my '07 LB, I cut the above cable in half and used the end with the RCA connectors for this modification and kept the other end (the one with the 3.5mm connector) in my spare parts box.

Worked out perfectly because my new HU has a 3.5mm input on the back. All I had to do was crimp male quick slide connectors on each of the four wires. After the connectors were crimped on, I simply slid each one into the T-Taps I put on each wire on the stock aux jack's harness.

Connections:

- red wire from 3.5mm cable to ARI
- white wire from 3.5mm cable to ALI
- one of the black wires from the 3.5mm cable to ASGN
- the other black wire from the 3.5mm cable to AGND


This cable I used has four wires matching the four wires of the new aux jack harness:

http://img364.imageshack.us/img364/6027/wireso0.jpg

I tested the wires first before crimping and connecting. The sound didn't change at all when I switched the cable's two black ground wires around (connecting each to the ground shield and audio ground on the aux jack harness).

[mikenacarato]

what wires on your stock aux harness did you use though?

[IsLNdbOi]

Added additional info. to my previous post.

[jcboy]

Got it done last night. Went ahead and just used T-Taps w/ quick slide connectors. I didn't have to buy a new cable to do this either. I had leftovers from this cable:

http://akamaipix.crutchfield.com/products/2005/119/h119MCON2M-f.jpeg

When I did this aux. jack modification on my '07 LB, I cut the above cable in half and used the end with the RCA connectors for this modification and kept the other end (the one with the 3.5mm connector) in my spare parts box.

Worked out perfectly because my new HU has a 3.5mm input on the back. All I had to do was crimp male quick slide connectors on each of the four wires. After the connectors were crimped on, I simply slid each one into the T-Taps I put on each wire on the stock aux jack's harness.

Connections:

- red wire from 3.5mm cable to ARI
- white wire from 3.5mm cable to ALI
- one of the black wires from the 3.5mm cable to ASGN
- the other black wire from the 3.5mm cable to AGND


This cable I used has four wires matching the four wires of the new aux jack harness:

http://img364.imageshack.us/img364/6027/wireso0.jpg

I tested the wires first before crimping and connecting. The sound didn't change at all when I switched the cable's two black ground wires around (connecting each to the ground shield and audio ground on the aux jack harness).

Sorry to thread necro, but is this the reason why i get humming sound only when on IGN and not on ACC? I left the AGND out as i was under the impression only pins 15, 16 & 17 were involved in the audio transfer-so pin 18 AGND wasnt connected to anything.