There's one available on ebay for cheap. I had this in my shopping cart for a while. Honestly not sure what a new one costs. It may take some work as that button is integrated into some electronic circuitry (see previous page of this post) but it might be doable...

http://www.ebay.com/itm/2013-SCION-F...ee796a&vxp=mtr

To the OP.
Nice dude.
Love seeing lil functional mods like this.
:thanks:

those are silver buttons, would ruin my interior :lol:

I took apart the MT buttons.

Honestly, with a bit of ingenuity, I think you'd be able to get them to work as is.

Mechanically speaking, the MT buttons are pretty much the same as the AT. The center blank is still a button, and it's still hinged in the middle, but it's got a wide flange around it that keeps it from moving. If you trimmed the flange, you could get it to move. The PCB is the same but the two rubber membranes that short out the AT buttons are gone. If you could find the right part, they could be added back in. There's no control logic on the button PCB either. There is one common pin and then each button shorts its own pin to the common pin. So there's three pins on the MT (TCS, VSC, common) and five on the AT (TCS, VSC, Snow, Sport, common) plus I think two pins that are just for lighting. I am not sure if the common pin is vehicle ground or what, I haven't measured. But the traces are all there, there may even be the additional pins in the connector (I don't remember, it's been months since I took them apart), You'd still need to find a way to connect into the HU. I wouldn't feel comfortable connecting the SWC common pin on the HU to the common pin on the buttons, I don't know if they'd play nice.

OP, you suck. Now I'm going to have to go through the same measuring process for the FR-S Pioneer radio.

More than one ? equals sarcasm.......

Yes it is cool.

....but real sports cars don't have radios either!!!!

btw, more than one ! equals the same thing as more than one ?

That is the best explanation as to why, the touch screen issue...

And see my above post........on a side note, http://www.urbandictionary.com/defin...=jive%20turkey

finally someone understands why my name on a car forum IS PERFECT.


TROLLOLOLOLOL

I know the values are probably different, but does anyone know if the pinout is the same for all the HU's? In particular for the HU in the FR-S anniversary edition (now standard for 2014 Scions)?

Exactly. Another side benefit is that you can change stations while in the navigation screen, which is nice.

How did you end up connecting the 3 wires to the 28 pin connector?

I used the pins out of a front panel header from a computer case, they aren't exactly the right pins but they're close enough to fit in the connector. Not sure what fogelsre did.

I ordered these parts from Digikey so that I could have a disconnectable harness:

WM1856-ND - CONN PLUG 3POS 3MM SINGLE ROW
WM1846-ND - CONN RECEPT 3POS 3MM SINGLE ROW
WM1841-ND - CONN TERM MALE 20-24AWG TIN
WM1837-ND - CONN TERM FEMALE 20-24AWG TIN

The female connector terminals (the last item) fit the 28-pin harness perfectly.

Bob

All I really need is next/previous track as volume up/down is a physical knob. A switch like the OP used could go in the blank spot used for sport/snow in the automatic, & you wouldn't have to relocate the heated seat controls.

Sent from my SCH-I535 using Tapatalk

This is a concept I'm think of.

http://www.ft86club.com/forums/pictu...pictureid=6614

now it's just figuring out what components I can use with the space provided. But really it's just a idea nothing more lol

I don't really see a need for volume control there, b/c of the readily available physical volume knob on the HU itself. Physical buttons for the touch screen are definitely helpful, but redundancy for the volume knob is adding unnecessary complexity for this DIY. With another HU, I'd say it's a good idea (like one with just volume up and down buttons like my last HU, the Pioneer App Radio 2), but for the stock Subaru HU....? Nah. If it's easily doable, then sure, but if it'd add some headaches I'd say leave it.

But that multi-function switch/knob idea is brilliant! I like! If you get the circuitry and programming devised and set up for easy DIY, I'd love to try it.

I had given some thought to this as well, I think the way to go would be a D-Pad, maybe salvaged from an old video game controller. Use up/down for volume, left/right for seek, and if there's a center button, use that for mode. It should be compact and ergonomic.

Remember, what the head unit is looking for is just shorting out two pins with a resistor. It's going to be much easier with a discrete on/off switch than using a potentiometer or an analog joystick or anything like that that has variable resistance. You'll need some intermediate circuitry to turn that into the type of signal that the HU is looking for. I'm not an electronics guy and I really don't know what you'd need to do to make that conversion, so I'd lean towards simple switches and resistors.

@foglesre @nalc


so basically you are just bridging the poles with the correct resistors (or just a wire in case of 0 ohms) if I'm reading this all correctly.

the part that confuses me is how i connect 21/23 for my volume/seek and do 1 without a backfeed or am i wrong for thinking of this in terms of normal power/ground?

also how do i connect pin 21/23 to 6 poles per switch? just solder it off into branches? so that 1 wire becomes 3 (in the case of a single switch)?