Adding backup camera to 2012 non-nav Prius 2 with touch screen

Discussion in 'Gen 3 Prius Audio and Electronics' started by our1vue, Aug 31, 2013.

  1. our1vue

    our1vue Member

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    After waiting 36K miles, it was my turn to put in the rear view camera. My EE friend came over to keep me from doing something stupid with electricity, and made the wiring look much more professional than if I had done it myself. So if he is reading this, again I thank you for all your expert help. I was going the headliner route, so I went to the Toyota dealer and got 3 female pins for the connector.
    CP8.jpg

    They were expensive ($15 each), but they make it so much easier when it came time to doing the wiring. It says they are a .64 II type connector, so maybe someone can find another source.
    First remove the back overhead light by removing the plastic lens cover and then squeezing the two side clips, pull the light base down from the ceiling. You can leave the wires attached
    CP1.jpg


    Next remove the driver side rear passengers overhead handle by first removing the plastic cover (you can see the place to insert the screwdriver in the photo). Then squeeze the metal clips together and remove the handles. You can then remove the metal clips from the openings by squeezing them together.
    CP5.jpg

    CP4.jpg


    Next remove the driver side rear panel that holds the headliner. You don't have to remove the whole panel, just the top part that presses against the headliner.
    CP2.jpg

    Finally, remove the three plastic push pins that hold up the rear part of the headliner.

    The headliner should now be able to flex enough for you to reach in and disconnect the connector. You have to squeeze a little tab on the bottom of the connector to unlock it from its matching half. The connector also slid out very easily. Actually there are two connectors tied to the one wire bundle, so you have to disconnect them both. After they are disconnected (and after you cut a piece of support tape) you can pull the connector out into the hatch area.
    CP3.jpg

    Before you can put the female pins in the connector, you have to raise a locking bar on the connector (see pic). If you look very carefully at the connector, you could see 2 indents where you can put a tiny screwdriver in to pry up the locking bar.
    NOTE: Only pry the locking bar 1/2 way up. Don't remove it completely or all the pins will come out.
    (Thanks to PTN for getting this picture)
    connect2.jpg

    The following pic shows the female connectors attached to the new wire from the camera. We decided to run 4 wires just in case we needed it in the future.
    CP6.jpg

    The following pic shows the four new wires inserted into the connector. Our female connectors all have the same color, but if they were color correct, the white wire would be in hole 7, the red wire would be in hole 8, the black wire would be in hole 9 and the orange wire would be in hole 10.
    CP7.jpg

    That is pretty much it. Replug the 2 connectors, re-install the light, overhead handle and side panel and push in the 3 liner plugs.
    When you start the car up, and put it in reverse, you can now see what you have been missing behind you.
    CP9.jpg
     
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  2. pmike

    pmike Member

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    Did you use a factory camera?
     
  3. our1vue

    our1vue Member

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    pmike,
    Nope. I got one of the 3.3v cameras from China that I talked about in the writeup. It looks just like a factory camera (I compared it to my EE friends prius who did have a factory camera)
     
  4. Chuck815

    Chuck815 Junior Member

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    Nice job and nice pictures. That was clean how you wired into the roof connector. Incredible that Toyota charged so much for the pins! More than the price of a camera/cable. Looks real good.
     
  5. our1vue

    our1vue Member

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    Chuck815,
    I thought they were kinda pricy too, but it made the headliner install much easier. If you think the pins were expensive, I think someone said the Toyota camera was $600. Makes the pins look cheap :)
     
  6. zebelkhan

    zebelkhan Member in good standing

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    Great job!
     
  7. Dan4500

    Dan4500 Junior Member

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    Congratulations!! You really explained how to drop the headliner without creasing it. I could never figure how to get the side attachment to release. I saw the open connector in there but if I reached in, the headliner would have bent and creased. I remember that another poster (from Illinois) had reached in with the super long pliers to get the connector out. I did not know how much slack was in the cable to allow it to be pulled out. Admire your patience in waiting for the 36k miles. Enjoy the backup cam.

    dan4500.
     
  8. our1vue

    our1vue Member

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    Dan4500
    I have a tremendous amount of respect for anyone that went the headliner route and tapped into the wires on the male side of the connector. Even removing what I did, it would have been a challenge to get at those 3 wires. I did a google search on that connector pin part number and got a couple of hits. The mail order places are charging $12 each for the pin connectors. One forum said they found an Asian source for $.24 a piece (if you can believe that). I was going to look on Digi-key (they have tons of connectors) but I don't know what is the official name for that connector type to look it up.
    The camera is a great addition to a great car.
     
  9. our1vue

    our1vue Member

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    Ops, ya caught me. :)
    In my headliner append, I said I got 3 female connectors to wire in the camera. But someone noticed in the pictures they show 4 connectors. I confess I ran all 4 wires, but I only needed 3 of them. One is just taped off down by the regulator. So the bottom line is you only need to buy 3 female connectors and just run 3 wires to the camera/regulator.
     
  10. ptn

    ptn Junior Member

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    Finally got my back up cam to work! Thanks to our1vue for all the support and help. I went the headliner route but ran into some problem with my pin connectors. End up tapping into the wires in the headliner and it worked.

    Here are the items I got including the price if any one wants to know:

    Back up cam $24.98 (cheaper one for 19.99 on ebay)
    Car Reverse Rear View Backup Camera for Toyota Prius 2006 2010 with Night Vision | eBay

    RioRand LM2596 DC-DC Buck Converter Step Down Module Power Supply Output 1.23V-30V (regulator for $4.29 from amazon, although there was one cheaper for 2.99 but quality was cheap and took 40 days to send..)


    18 or 20 gauge wire (free had a bunch of leftover wires, can find it cheap online or a local electronic store for less than 7 dollars)

    Posi-taps 20-22 ga. ($8.50)
    Posi-Tap- No Crimp Tap

    Heat Shrink tube (about $2 from harbor freight even though I didn't use most of it)

    Electrical tape (less than $2 from harbor freight)

    Soldering iron with wick (free, had a friend do it for me)

    Trim removal tools (about $6 from harbor freight)

    Toyota terminal/pin connectors female (about $0.24 each but shipping is like $12, not sure I ordered the right ones but I did type in 82998-24300 to search for it and everything is in Japanese but they did fit) I ended up not going this route because my connectors weren't making contact for some reason and ended up using the Posi-taps
    http://www.rakuten.co.jp/auc-hi-1000/

    our1vue's guide and help (priceless:cool:)

    Just follow his guide and you're good to go. I like the headliner route since I don't have to get to HU or run wires all the way to the front. Toyota already has the wires ran for you if you notice in our1vue's headliner guide. Since my connectors weren't making contact, I used posi-taps on the male end and was pretty easy to reach. I wouldn't recommend scotch locks because it'll be hard in that little space and lots of negatives about them. All you have to do is twist with Posi-taps.

    Remember Toyota's side wiring is white for power + and orange for power -. Red was video+. All you need is 3 posi-taps which leaves you with 3 left over if you order 1 box. You can reach into the headliner and pull wires on the male end of the connector to tap them.

    If you decide you want it to look cleaner, go with the pin/terminal connectors. Our1vue has the correct slots for which wire to go where.

    Thanks for this guide!
     
  11. James4455

    James4455 Junior Member

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    I went to Best Buy (this appears to be the top installer here), I purchased a camera from them as well as the installation. I told them that this forum explained that the HU would support the camera and not require a new HU. The procedure went fairly well albeit time consuming. They hooked the unit into the back of the HU by splicing into the harness. When the car was started and put into reverse, no change was seen on the touch screen. The RCA plug was connected to a TV that they had on hand and the test worked as it should. This showed that the wiring is correct. From reading posts here, it appears that we need some type of adapter to connect to the HU. Can someone tell me what the connector/adapter is and where to obtain one?

    After reading this article it seems that a backup camera is not compatible with this head unit unless you are an electrical engineer if you have to make your own circuit board. I don't understand this at all. Please help.
     
  12. zebelkhan

    zebelkhan Member in good standing

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    I doubt if you need an adapter or a circuit board. Remember HU has to "sense" presence of a video camera during start-up (Ready mode) in order to switch to backup camera when you put it in reverse. So getting power from reverse lights, as most after market installs call for, will not work here. You will have to wire the camera in such a way that it gets powered up when you start the car. Then HU will know it is there and will switch to camera mode when you shift into reverse. Have the installer power up the camera before you start the car and test this.
     
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  13. James4455

    James4455 Junior Member

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    That seems plausible, and thanks for your input. Now back to Best Buy.
     
  14. our1vue

    our1vue Member

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    So I've been thinking, if you don't use the 6.5V from the HU to directly power the camera or to somehow trigger 12V to the camera (ie via a relay), is there any way the backup camera will be sensed without the camera being powered up when ever the car is on (no matter what gear it is in) ?
     
  15. James4455

    James4455 Junior Member

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    Zebelkhan: I went back to Best Buy and he determined that we need some type of adapter to connect the head unit. A 'Y' with male/female/RCA to plug into the HU. Does this make sense? I don't know why we are having such problems when so many others have theirs up and going. I have virtually no electrical knowledge and he has no experience with the Prius and a lot of trepidation about working on one as there are tales about serious damage being caused. I asked the Toyota parts department and was told that nothing of this sort exists and the 2013 Prius has no camera and the only way to install one would be to install a new HU with navigation. I can't afford a nav unit.
    How do we connect to the HU without an adapter? If we were to tap into a wire to get the power upon start (shudder) which wire would it be? I apologize for being so dense, is this something I am just going to have to give up on? I am happy to say that I have been amazed at how to skin the dash, Toyota seems to have made this easy for opening up.
     
  16. our1vue

    our1vue Member

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    James4455,
    I was wondering how BB was going to get the HU to sense the camera. Anyway I wouldn't give up yet. I assume
    BB used an adapter cable that had a RCA plug for the video. Are you are looking for a 12V source that is hot whenever the car is turned on or do you still need to connect the camera to the HU too ? Just trying to figure out where we are starting from.
     
  17. James4455

    James4455 Junior Member

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    Yes the camera came with an RCA plug for the video and we would need the 12V source that would cause the HU to sense the camera. The camera worked well when plugged into a monitor that he had on hand and the power was obtained from the left backup light. I was hoping there was an adapter that would just make these connections like I've seen for radio upgrades. He is fearful of tapping into the wrong wire and causing expensive problems associated with the newer technologies. Thank you for your interest in helping us.
     
  18. our1vue

    our1vue Member

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    James4455,
    In this other thread 2012+ package II back up camera, group buy, gauging interest ( i am not a vender) | PriusChat they have an adapter with a rca plug for only the video. For power they were tapping into pin 3 and pin 7 of one of the radio connectors. The trick to get the HU to sense the camera was to put something on the orange wire going to the HU. I'm not sure if the adapter or pin 3 or 7 taps into the orange wire. We would have to ask in that other thread. If you did go that route, I think the camera would be on when ever the car is on. Someone in another thread did that (and I'd have to look through that thread to see what wires he tapped into). I'm not sure if that
    is a concern for you. I also don't know how long the camera will last running all the time. So is the BB installer willing to keep working on your prius or are you on your own ?
     
  19. James4455

    James4455 Junior Member

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    He has been very patient as have you, he's learning as well. Thanks for this information. It sounds like what we are looking for.

    SM-N900V ?
     
  20. canta

    canta Member

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    easy way is through car lower side body and wire the cable to the driver lower side panel.
    you do not need splice or connector. I use some left over pins that fits perfectly.

    as on the first posting, you need to convert from 12V to 6V compliance that the camera piggy tail has DC-DC step down to 3.3V.

    on mine, this is silly on design :p.. , it has 12V t0 5V DC Stepdown and goes to 5Vto 3.3V stepdown :p. I bypassed directly to the 5V to 3.3V stepdown.
    some ebay camera, has voltage divider via resistors and feeds to 3.3V DC stepdown..
     
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