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We are closed thru Aug 11th Due To a Family Emergency. Thank you for your patience.
We are closed through 08/11 Due to a Family Emergency. Thank you.
    (1 customer review)

    Easy Ford Transit Connect 4" to 8" Sync 3 Upgrade Harness


    1 × 4" to 8" Sync to Sync 3 Upgrade Harness B

    4 in stock (can be backordered)


    4 in stock (can be backordered)

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    The NaviUpgrade Ford Transit Connect 4" to Sync 3 Upgrade harness is perfect for the DIY-er who is looking to add Sync 3 to his or her van, the easy way!

    We also offer FREE programming files with your purchase, something no other online store does. This allows you to get up and running quickly using an OBDII dongle, without messing around with a bunch of settings or hex codes in FORScan.

    Please feel free to check out our Guides tab for more information on what other hardware you'll need to complete your upgrade.

    We pride ourselves in providing the most value out of any online store when it comes to Sync 3 Upgrades. NaviUpgrade is constantly working on building out resources for our customers and fans to use on their own vehicles. Our goal is to empower all vehicle owners to feel comfortable upgrading their own vehicles.


    This harness will work for a 4" to 8" Conversion, also known as the Sync 1 to Sync 3 Upgrade for any base model 2014-2018 Transit Connect.Please be aware that this conversion harness and programming file combination will not work on vehicles other than a 2014-2018 Transit Connect.
    Shipping & Delivery
    Free 2-3 Day Delivery for all US Purchases

    Flat $50 Fee for International Shipments
    If shipping costs more, we cover the cost, if it costs less, you get reimbursed the difference.

    1 review for Easy Ford Transit Connect 4" to 8" Sync 3 Upgrade Harness

    1. Stan (verified owner)

      I used this harness in my 2016 Transit Connect, and it worked flawlessly! The wiring is high grade, and the connectors are high quality. I used this to take my non sync Connect to a sync 3 system, which required many extras in addition to this harness, but this was the starting point. Highly recommend Naviupgrade! Best customer support I've ever experienced! Shipping was lightning fast!

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    Brian Lovelace

    Brian Lovelace

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