What are all the rear inputs in my 2010 Prius e7022 head unit?

The wiring diagram shows the pinouts for all those. I was asking the same questions last summer, so this labeled picture might help:



The microphone and backup camera both account for some of the pins in L37. L38 and L39 both go to the separate XM tuner that's located under your seat. The USB interface box is also down there, which you surely don't care about, as any replacement unit you put in is sure to have its own USB.

The gray square coaxial plug is your GPS antenna. The XM antenna connection (which you might need for your new unit) you can see in the opening behind the radio. It's plugged into an extension that goes to the XM tuner under your seat, but you can unplug it back there and plug it into your new receiver if you need it.

The wiring diagram, like all the rest of your service info, is on techinfo.toyota.com.

By the way, I later figured out the "??" blue connector is L105, a GVIF video input for use by the auto-park computer if you have it. It's not shown on the wiring diagram for the radio, but it is shown with the auto-park computer.

-Chap

 

I guess it was kind of buried in my last post, but ... the wiring diagram, like all the rest of your service info, is on techinfo.toyota.com.

-Chap

 

I think you're right about the reverse and parking. You didn't mention which power and ground you tapped, so I can't opine on what happened there. Are you sure about the integrity of all your connections?

-Chap

 

Does your Pirus V have self parking? If do, the rear camera does not connect to the radio. It connects to the self parking ECU behind the glove box. When you shift into reverse, the head unit receives the reverse signal (+12V pink wire L42 plug) and converts it into canbus then goes to the self parking ECU and triggers the reverse camera. Camera power is also from the self parking ECU not the head unit. The reverse image (analog NTSC signal) goes from the rear camera to the self parking ECU. The ECU converts the analog NTSC signal into digital signal and routes to the head unit with self parking overlay through the GVIF cable (L105 plug).

 

Was there anything plugged into L105? That'd be the giveaway.

-Chap

 

If you have dynamic cruise control and lane keep assist, you have self parking. There are 2 buttons on lower right silver column on steering wheel that says "LKA" and a car icon. Another way to tell if you have self parking is there's a sonar clearance sensor on each side of the front bumper.

 

Another way to tell would be ... whether there was originally something plugged into L105.

 

Dear fellow Prius Drivers and OP, two years later I am also going through a very similar situation since I have a 2010 Prius iii with JBL E7022 system. I bought a Seicane aftermarket stereo from abroad, loved the large screen display. Problem is, the harness does not match because it fits the system without the JBL amplifier. I figure I'll have to buy the Pac RP4.2-TY11, then cut and crimp/soslder wires like you did. But what I wonder is if you were able to retain the functionality of your factory backup camera after all your ordeal?. My back up plan for this is to install an aftermarket backup camera that uses the yellow video cable jack provided the Seicane stereo supports it. But I really want to avoid all that and retain the OEM backup camera.

 

Have you gotten this installed? I just bought a similar head unit but not a Seicane. I'll be giving self parking which I hate but haven't used it in months. I can park way faster and better than the IPA. I'm hoping the IPA ECU can supply the camera power even when the radio is disconnected.

 

I eBay they have a kit that’s all a plug and play this guy that I’m buying the radio from said it’s all plug and play