T1814 Installed?

B

broke e7

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Has anyone installed a T1814? Problems? Thoughts? Good, bad, ugly?

There have been a few different threads about the Scion HUs, but no one seems to have much to say about the T1814 HU (other than similar to the T1809).

I've been leaning toward the T1809, but I kind of like the look of the T1814 a little more. Sorry if I missed something in the other threads.
 
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Alright, I guess no one has had much luck with this HU (T1814). I ordered one today and it should be here in around 3-5 days. I plan on posting pictures of the install.

The biggest issue seems to be the iPod connectivity. They changed the back of the 2010 Pioneer (T1814) and the Premium Alpine unit made for Scion. There doesn't seem to be a good answer on how to accomodate this. After much research, this is the path I plan to take: Once the unit arrives, I am going to run down to Toyota to take a look at Part Number 86203-12340. This is the what connects the HU to the factory USB/iPod port in the Scion xB. If it looks like a good fit, I believe I can cut that line and splice it with a standard iPod USB connector. In theory, this should work.

I only outline this so if anyone has ideas/suggestions, I am interested in feedback. Otherwise, I will post pictures of this... debacle when/if I get it to work.

Cheers.
 
Full USB and iPod functionality with T1814 in 99 4Runner

I don't often post to forums but wanted to share my success providing iPod and USB functionality with a Scion T1814 head unit installed in a 1999 Toyota 4Runner (couldn't see that number anywhere on the unit but it's used in the forums - mine is a PT546-00111 earlier P/N was PT546-00100) . Did a lot of research but couldn't find an inexpensive solution (one was to purchase a $75+ cable from Toyota, then modify or splice it in) The new 2010/2011 head unit from Pioneer has a proprietary USB connector on the back which is part of the Scion wiring harness and can't be purchased anywhere that I am aware of.

I already had a T1808 installed and there is plenty of info on how to do that so I'm not covering the install in detail. The main reason for switching to the newer unit was that my wife listens mainly to audio books and the T1808 has limited functionality (can only scroll through Playlist, Artists, Albums and Songs) but the newer unit adds Podcasts, GENRES, Composers and Audio Book.

The method I am sharing requires some disassembly of the head unit and soldering a USB cable directly to the circuit board but it's not that difficult and will only cost about $10 - $15 for a readily available USB extension cable. I used a 6 foot cable which was plenty long enough to reach to the center console where I connect the iPod.

I will post instructions and pics in some additional entries but here is the Scion T1814 with full USB and iPod functionality.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-USB.jpg
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-iPod.jpg
 
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Step by step instructions to attach USB cable to T1814

Here is an illustrated step by step to attach a USB extension cable to the T1814 Scion head unit that will provide complete USB and iPod functionality. You could choose a different variation or length of cable but I chose a 6 foot standard USB extension cable that I already had. Fortunately the USB connection points that you will solder to on the board are labeled or it would have been much more difficult.


1. Remove the rear heat sink from the back of the head unit (six screws that are marked with arrows)

2. Remove the front panel (display) of the head unit (2 screws and carefully pry up the plastic retainers all the way around - try not to break them). I also disconnected the ribbon cable from the display so I could set the display to the side (just pull the ribbon cable straight out from the connector on the display circuit board)
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/display.jpg

3. Remove the screw from the antenna connector, the one from the Sub-Out RCA connector and the screws on the sides of the exterior shell (don't have pics and can't remember how many but should be obvious) only from the lower section that houses the circuit board with the brown USB and RCA connectors.

4. Carefully lift off the exterior housing and disconnect the two ribbon cables (same procedure as for the display)

5. Remove the screw and carefully bend the 2 tabs straight so the board can be removed from the housing
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/usb-cb.jpg

6. Cut the male end off the cable (the one you would normally plug into a computer USB port - not the end you would plug a USB flash drive into) and strip about an inch of outer cable and shielding, then bare the ends of the 4 wires and tin them with your soldering iron.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-02.jpg

7. Identify the spots on the circuit board where you will solder the wires to.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/scion-01.jpg

8. Solder the wires as shown to the circuit board (Red to USB5, Green to USBDP, White to USBDM and Black to USBG)
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-03.jpg

9. I opted to add some strain relief by using 5 minute epoxy to help keep the wires in place (verify the epoxy you use is non-conductive by mixing some first, letting it set and checking with an ohm meter - should be infinite ohms when touching the probes to the hardened epoxy.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-04.jpg

10. You may need to flatten the USB cable a bit with a pair of pliers (be careful not to damage it) where it will lie between the circuit board and the housing.

11. Attach the circuit board back to the housing, replacing the screw and bending the tabs again to hold it in place.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-05.jpg

12. Re-attach the ribbon cables to the circuit board by pushing them straight into the connectors (this can be a bit tricky but take your time and be careful not to damage them), then replace all the screws that you removed in the previous steps, re-attach the ribbon cable to the front display and snap it back into place.

13. Route the cable through the rear heat sink utilizing the gap between the USB and wiring connectors as shown and replace the screws that attach the heat sink to the rear of the unit.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-06.jpg

14. Plug the head unit back into the factory wiring and test with USB flash drive and iPod before mounting and replacing all the covers.

I used a standard iPod USB sync cable to plug into the female end of the USB extension but have ordered a Scosche retractable cable which will eliminate the excess cable in the center console (the iPod resides safely out of sight in the upper section of the armrest which I had to remove and disassemble to get the USB cable to where I wanted it - will try to post some pics of that later)

Hope this method helps some of you that would like to utilize the iPod and USB connectivity until such time as someone comes out with an aftermarket cable that that can be attached directly to the back of the head unit in the brown connector. FYI - I originally thought I might file down the male end of a USB extension cable to make it fit into the plug but after removing the circuit board and metering out the connector with an ohm meter - it is non-standard, even if you did get one to fit in the slot it probably would not work and even worse might damage the head unit or your usb device.
 
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Modification to mount Scion head unit in 1999 4Runner

Decided to just finish this off and post a couple more pics of the modifications I did to mount the T1808 (originally) and the T1814 recently.

I used an air cutoff tool and various files to enlarge the bezel opening to accomodate the wider Scion unit (fortunately the T1814 fits exactly the same opening) Take your time and do it carefully a bit at a time and you can get a decent looking opening.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Bezel.jpg

I used the original Toyota stereo mounting brackets (they fit exactly) but had to add some spacers to bring the head unit further forward into the bezel opening. I used a combination of washers and a nut as shown.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-07.jpg

Had to notch out the the mounting area to accomodate the wider Scion head unit.
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/mount-1.jpg

Couple of pics with the head unit bolted in (the upper left screw is hard to reach with a screwdriver - I used an 8mm wrench to tighten it).
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/mount-2.jpg
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/mount-3.jpg

Finished product - looks like a factory stereo, hopefully the crack heads don't think its worth breaking in to steal like they might an aftermarket one!
http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/Scion-USB.jpg

Just wish I could easily change the color of the backlighting - it's amber and the rest of the 4Runner lighting is green. From what I understand there is a multitude of surface mount LEDs and I'm not sure I want to tackle that project. At least the display in the T1814 is white instead of amber like the T1808 that I previously had installed.
 
This is great information. Thanks falcon115. I am a newbie with the car electronics, but I like this fix. While this is definitely over my abilities, I may still try. Unless something quicker and easier pops up soon.
 
This is excellent as it is the exact unit I was looking at to replace my failing OEM unit in my 2000 SR5. I thought the rear connector was USB but it's great to know how to add in a standard cable. I think I might just unsolder the non-standard connector and swap in a standard one to eliminate the cable routing issues.
 
I thought about that zcruiser, but be careful because the pinouts on the board are non-standard - if you attempt it be sure you meter out the connector because if you look at picture http://i211.photobucket.com/albums/bb21/falcon115/4Runner-Scion/scion-01.jpg you would expect that the test point USB5 would connect to the pin directly above it but if I remember correctly it connects to the one above USBG and USBG actually connects to the point above USB5. If you research standard USB pinouts - the ones on this board do not match and you could blow something.

My next project is to attempt to change the 29 tiny surface mount LEDs on the faceplate from amber to green so it'll match my wife's 4Runner illumination. Thinking that will be a challenge but would be worth it if it works! Will post pics if I actually accomplish that.

And BTW, she likes this head unit much better than the T1808 I had in there previously - it gives her better control of her iPod menus.
 
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Yeah, good point. I can see severing all 4 lines between those wire points and the connector and then doing the necessary crossover to fix the non-standard pinout.

I don't know why they have to do that anyway. Just make it a standard USB port and be done with it. :sniper:
 
Thank you

Dear sir, I just joined this forum to thank you. I just followed your instructions and it works!

A couple modifications:

a] I stripped the jacket back a little further to avoid squishing under the board. No need to worry about shielding, as this is inside the shielded housing.

b] I added a nylon P-clamp to the USB cable and held it in place with one of the heat sink screws. This acts as a strain relief.

Other notes:

No matter what you do to a male USB connector, regardless of if you are willing to cross-wire it, the contacts on a standard USB connector will not make good contact with the proprietary Scion/Pioneer connector. Believe me, I tried.

Again, I thank you.
 
I succesfully installed this deck into a 06 4Runner sport. Direct plug & play. I also soldered a usb cable onto the board.

Thanks for the research & write up on that.

Now I am waiting for the blu logic blue tooth kit to get here.
 
Bedstraps said:
So after you solder the USB to the board you have complete control of the ipod from the headunit?
Click to expand...

Yes it does.

I have the blue logic kit installed (a bit of a disappointment) and I noticed my rear door speakers don't work if I move the fader to the rear.

I'll have to unplug the blue logic kit to see if that causes it, or it is the deck itself.
 
falcon115 - THANKS!
I just stumbled on this and this is exactly what I was trying to figure out. I picked up a T1814 to put in my Yaris actually. I'm glad this is going to work with hookup to ipods.

I'm if you know if this will work with an iPhone4 and does it charge the unit while being connected?

Thanks again!!!
 
T1814 Steering Wheel Controls?

I have an 08 and am considering installing the T1814; will I lose steering wheel audio controls?
 
I am about the try this with the alpine premium unit. The board is different but can I assume I solder the wires in the same color order as should here since the jack is the same. The board is not labeled the same on this unit. It is just labeled.

V BUS
HM
HP
GND
 
trey99ek said:
I am about the try this with the alpine premium unit. The board is different but can I assume I solder the wires in the same color order as should here since the jack is the same. The board is not labeled the same on this unit. It is just labeled.

V BUS
HM
HP
GND
Click to expand...

If anyone cares I finally go this working on the alpine premium unit.
 
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