2020 head unit in 2017 model?

Discussion in 'Gen 4 Prius Audio and Electronics' started by jstevens44, Sep 10, 2019.

  1. jstevens44

    jstevens44 New Member

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    The new head unit for the 2020 model comes with CarPlay standard. What are the chances that it would be an easy swap to install it in my 2017 Prius Three, if I were able to get ahold of one?
     
  2. krmcg

    krmcg Lowered Blizzard Pearl Beauty

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    Great idea. But I’m betting against compatibility.
     
  3. pkscout

    pkscout Junior Member

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  4. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    +1 suggest switching to aftermarket.

    That way it’ll be better than anything Toyota sells today, plus it will be staged for a cheap, slam-dunk upgrade whenever something new takes over from Carplay. Much better defense against obsolescence.
     
  5. jstevens44

    jstevens44 New Member

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    If you switch to an aftermarket unit, wouldn’t you lose some of the car features that are controlled through the head unit? There is a car menu in there and some customization. The aftermarket wouldn’t have that.
     
  6. pkscout

    pkscout Junior Member

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    That I don't know. I do know that Crutchfield sells a set of wiring harnesses and little hardware addons to do things like steering wheel control and backup camera, so most of the functionality will be there. I just can't say specifically what might be missing.
     
  7. Elektroingenieur

    Elektroingenieur Senior Member

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    It wouldn’t be a drop-in replacement. The Repair Manual and Electrical Wiring Diagram (more info) both show that the connectors on the rear of the 7-inch head unit changed substantially for 2020. Even the 6-position and 10-position power and speaker connectors, found on Toyota vehicles for many years, are apparently no longer used. You can see the differences in the external photos attached to the FCC’s equipment authorization database for ACJ932AT1501 (2017 Entune Premium Audio) and AJDK101 (2020 Audio Multimedia).

    In principle, you could build an adapter harness, but the new-style connectors don’t seem to be available individually as service parts, so you might have to get a complete instrument panel wire harness from a 2020 model. The prices for this and the head unit, at least as service parts, are likely to be eye-watering.
     
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