There are NO RCA jacks on the OEM Head Unit like there were on previous model Scions. There are 2 open jacks for harnesses to plug in to that may indicate that future models with this Head Unit or other cars (tC or FR-S) may have a sub woofer option that a harness
plugs into on the Head Unit though. I need to do some more research. Here are some pictures for reference. The piano black piece just pops off (gently. I started from the corner by the passenger airbag light) and there are 4 x 10mm bolts that secure the radio to the dash.



There are two plugs that attach to the piano black piece (hazard switch and passenger airbag switch) that need to be disconnected before removing the trim bezel completely



After the trim is out of the way you can removed the 4 x 10mm bolts that secure the radio to the dash and slide it out at an angle. There are multiple connectors to remove from the rear of the stereo, but as you can see there are no RCA jacks built into the Head Unit. This makes me sad. I really do not want to use line converters to make RCA jacks, I may look into the Bespoke NAV Head Unit, but before doing so I am going to read up more on the Toyota Auris, and Toyota Corolla Levin ZR then scavenge the rear interior of the vehicle, and under the seats to see if the car is pre-wired for any kind of sub woofer option we don't have yet here in the States.



Here is the Model number / info from the stereo label:

 

I have not seen RCA outputs in Scion radios since around 2013. Once they changed over to the Head Units with the large screen in the center they went away with it

It's a shame I really like the look of those Head Units but am not about to hack the wiring to make my sub work in my '10 xB.

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Samesies... I am hoping that as the aftermarket for these cars picks up someone will create some sort of a plug / play harness creating a powered line out converter for the OEM harness. I could easily draw a schematic / and a how to with a PIN out, but I have no way to produce the actual design

 

Could you yank that stock stereo out and replace it with something like a Pioneer AVHX5700BHS or something similar?

 

I'm really not trying to lose the steering wheel controls (or pay out the ___ for a module), and I like the back up camera as well...

 

You can probably have that Pioneer with the steering wheel controls, back up camera, bypass for just 400 bucks. I just can't stay with a stock stereo, it's never good enough.

 

Tap the Rear speakers and use this:


It works very well, and have used it in the past 3 cars I have owned, without any need to hack anything apart, or jack up controls.. etc..

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