GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Hacking (retrofitting) steering wheel audio controls for aftermarket headunit

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Old 11-20-14, 07:28 PM
  #16  
Justmeez
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How is the control unit attached to the steering wheel?
Old 11-21-14, 09:36 AM
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rgarjr
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it's held by 2 small phillips screws.
Old 11-23-14, 05:02 PM
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SorrGwa
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this thread got me in reinterested back into making my steering wheel controls to work with my aftermarket headunit.

I kinda 1/2 attempted to make that circuit board interface from a thread i read a while back but dropped the idea after realizing how much i suck at electronics.

but a quick trip to my audio shop and about 20mins of searching yielded this!

http://axxessinterfaces.com/index.ph...roducts_id=212

Applications

• Toyota Avalon 2003-2004
• Toyota Prius 2001-2003
• Toyota Sienna 1999-2003
• Lexus GS300 1998-2005
• Lexus GS430 2001-2005
• Lexus LX470 2001-2002
• Lexus SC430 2002-2009


i placed my order, ill tell you how it goes when i go in for install.

Last edited by SorrGwa; 11-25-14 at 05:22 AM.
Old 11-23-14, 08:57 PM
  #19  
702GS
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Originally Posted by SorrGwa
i placed my order, ill tell you how it goes when i go in for install.
This link should work: http://axxessinterfaces.com/index.ph...roducts_id=212

Also, what device are you using on your wheel? My Platinum 20000GS has nothing of the sort, so I would need to pick up a used EBAY thing, then use this to have controls ya?
Old 11-25-14, 05:23 AM
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SorrGwa
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this should be the controls on my steering wheel on the botton left area of the wheel



im using a pioneer 140bh headunit
Old 11-26-14, 05:51 PM
  #21  
Giggzz
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Originally Posted by SorrGwa
this should be the controls on my steering wheel on the botton left area of the wheel



im using a pioneer 140bh headunit
I have a 2002 hu in my 1999 gs 400 and works great. I would like to try this setup just not sure what wires on the back of the hu this would be hooked up to. Anyone know the wiring layout on the back of the oem navi unit? Thanks..
Old 03-11-15, 08:26 AM
  #22  
SorrGwa
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after a couple of hickups, finally got this installed. the install is relatively easy, it comes with the wiring oem plug and requires just power constant and ground. the other end goes into the aftermarket head units "wired remote" input.

a quick program which requires it to interface with the car for 20 seconds, then 15 seconds with the aftermarket headunit, and it was done.

still some fine tuning.

but my 6 button steering wheel controls are working, vol up and vol down work as they should, mute does what it suppose to do, track up and down, and mode (switch between navi and player in my case)



Originally Posted by SorrGwa
this thread got me in reinterested back into making my steering wheel controls to work with my aftermarket headunit.

I kinda 1/2 attempted to make that circuit board interface from a thread i read a while back but dropped the idea after realizing how much i suck at electronics.

but a quick trip to my audio shop and about 20mins of searching yielded this!

http://axxessinterfaces.com/index.ph...roducts_id=212

Applications

• Toyota Avalon 2003-2004
• Toyota Prius 2001-2003
• Toyota Sienna 1999-2003
• Lexus GS300 1998-2005
• Lexus GS430 2001-2005
• Lexus LX470 2001-2002
• Lexus SC430 2002-2009


i placed my order, ill tell you how it goes when i go in for install.
Old 03-11-15, 11:59 AM
  #23  
NorthStyle
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Good stuff. I have one sitting in my cave waiting on the rest of my audio parts to arrive (or be purchased) lol
Old 03-11-15, 01:29 PM
  #24  
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Originally Posted by SorrGwa
after a couple of hickups, finally got this installed. the install is relatively easy, it comes with the wiring oem plug and requires just power constant and ground. the other end goes into the aftermarket head units "wired remote" input.

a quick program which requires it to interface with the car for 20 seconds, then 15 seconds with the aftermarket headunit, and it was done.

still some fine tuning.

but my 6 button steering wheel controls are working, vol up and vol down work as they should, mute does what it suppose to do, track up and down, and mode (switch between navi and player in my case)
I also have one of these, I can't wait to install it now!

Quick question, how do you connect it to the steering wheel side? Do you have to take apart the wheel or is it behind the dash?
Old 03-12-15, 01:15 PM
  #25  
SorrGwa
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the oem steering wheel button assy?

i believe its attached at the steering wheel,, you should be able to see it once the air bag is out of the way. .



Originally Posted by Behemoth7
I also have one of these, I can't wait to install it now!

Quick question, how do you connect it to the steering wheel side? Do you have to take apart the wheel or is it behind the dash?
Old 03-13-15, 02:37 PM
  #26  
rgarjr
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Does the interface attach to the actual steering wheel remote or the clock spring connector? Any photos of the interface plugs
Old 03-15-15, 01:33 PM
  #27  
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the steering wheel interface kit attaches from the plug socket from the wiring located at the back of the deck.

the stock harness has a seperate 2 wire plug that is meant for the steering wheel controls. the kit comes with the female side of the plug,

Originally Posted by rgarjr
Does the interface attach to the actual steering wheel remote or the clock spring connector? Any photos of the interface plugs
Old 03-15-15, 02:14 PM
  #28  
Behemoth7
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Originally Posted by SorrGwa
the steering wheel interface kit attaches from the plug socket from the wiring located at the back of the deck.

the stock harness has a seperate 2 wire plug that is meant for the steering wheel controls. the kit comes with the female side of the plug,
Are you saying that you plug it into pre-existing wiring?
Also pics and a description of how to would be very helpful. Thanks!
Old 03-15-15, 08:20 PM
  #29  
SorrGwa
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it is a plug and play interface. it uses the pre existing wiring that is located with the oe wiring harness at the back of the head unit.

no pics, forgot to take pictures, but the install literally is 10mins maximum.

the picture off their website.


instructions
http://contentdocs.installernet.com/...duct/37868.pdf
Old 03-15-15, 10:46 PM
  #30  
rgarjr
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So everything is connected behind the headunit? Do you connect anything on the steering wheel area at all?


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