what is this?

[iliketobike]

I was replacing the stereo in my 04 Matrix XR and noticed that there is some sort of cable or wire coming from the "dummy" button below the A/C and Recirculate buttons on the dash.





The cable goes from that plug, runs under the stereo, and connects to the heater controls -- right behind the fan speed knob.

That third "button" doesn't actually move so I didn't expect there to be anything behind it. Does anyone know what this does?

[iliketobike]

I guess this is a stumper.

Does anyone have a working link to a parts manual that I could download?

[ventsyv]

Lot's of cars are pre-wired for some of the non-standard options. I'm not sure what that extra button is, but if it was for let's say heated seats, you seats would connect to a connector on the floor and all you have to do is to press it. Keeping that extra connection (or getting rid of it) should not affect anything.

[Ericss81]

On my 05 xrs that button is for heating rear glass

[megadan]

Originally Posted by Ericss81

On my 05 xrs that button is for heating rear glass

Same. Kinda odd actually... I thought heated rear was a pretty standard feature, all my Toyota's have had it.

[AOH_Trinity]

I have an '03 Matrix with the same button set-up but my dummy button didn't have the wire...not sure what that could be...