Replacement of factory stereo

Discussion in 'Gen 4 Prius Accessories and Modifications' started by Rodrigo Frade, Jan 29, 2017.

  1. Rodrigo Frade

    Rodrigo Frade New Member

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    Hi

    I have a 4th gen Prius (2016) with the gps unit from factory. I dislike the stereo (mostly because of the absence of apple CarPlay). I a, considering replacing it with a Pioneer AVH-X8700BT

    Do you know if there is a way to get CarPlay installed?

    If not (I am almost sure it is), what cables, accessories I will need for this replacement (to keep the reversing camera, steering wheel controls and gps/navigation) unit working

    Thank you.

    .
     
  2. Elektroingenieur

    Elektroingenieur Senior Member

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    There are no Toyota vehicles on Apple’s list of models that work with CarPlay, so I think you’re correct about its absence.

    As for replacing the radio head unit while keeping the factory-integrated GPS navigation system, I’m not sure this is possible. On the U.S. version, it’s definitely not: the head unit is the Navigation Receiver Assembly and contains the map database, gyro sensor, and other essential components. I have limited information about European models, but it appears that a separate Navigation ECU is used, with several connections to the Radio and Display Receiver Assembly, as seen on page 7 of this electrical wiring diagram:

    http://www.toyota-tech.eu/td3ewd/EN/EM3211E.V.1_v1/ewd/contents/system/pdf/AS-BUI.pdf

    I don’t see anything in the specifications for the Pioneer AVH-X8700BT (a discontinued model, by the way) that suggests it would work with the LVDS connection used by the factory Navigation ECU, only with Pioneer’s own add-on navigation system.

    The wiring diagram linked above also shows the connections for the backup camera, page 5, and the steering wheel buttons, page 8. Ignore the Navigation ECU on pages 5 and 6, which is for Korea only.
     
  3. Rodrigo Frade

    Rodrigo Frade New Member

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    Brilliant. Thank you so much. I googled a good bit yesterday trying to get the wiring diagram without much success. I will look at it and work on a plan to get CarPlay. Thank you very much.
     
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