# Adding 4g tcu to my 2016 fusion **URL:** \ **Category:** Non SYNC 3 Support\ **Tags:** TCU, SYNC3, APIM\ **Created:** [29 May 2026 22:32 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553 "2026-05-29T22:32:48Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![hunterhumphrey](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/hunterhumphrey/32/15995_2.png) [@hunterhumphrey](https://community.cyanlabs.net/u/hunterhumphrey)\ **Post date:** [29 May 2026 22:32 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/1 "2026-05-29T22:32:48Z")
so i have a 2016 ford fusion se that i have put a sync 3 apim in and im wondering if i can add a 4g tcu in it. it currently doesnt have a tcu so im wondering how hard it is to add the harness in as thats really my only concern. i already have access to forscan beta ---
**Author:** ![F150Chief](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/f150chief/32/14712_2.png) [@F150Chief](https://community.cyanlabs.net/u/F150Chief)\ **Post date:** [30 May 2026 00:26 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/2 "2026-05-30T00:26:02Z")
You might need a wiring harness if the vehicle is lower trim model. But yes you can add a 4G TCU, you will need a J-series unit or an H-series. K-series and beyond will not be compatible with your vehicle. ---
**Author:** ![hunterhumphrey](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/hunterhumphrey/32/15995_2.png) [@hunterhumphrey](https://community.cyanlabs.net/u/hunterhumphrey)\ **Post date:** [30 May 2026 01:12 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/3 "2026-05-30T01:12:58Z")
will it just plug in to the bcm or what? ---
**Author:** ![F150Chief](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/f150chief/32/14712_2.png) [@F150Chief](https://community.cyanlabs.net/u/F150Chief)\ **Post date:** [30 May 2026 01:50 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/4 "2026-05-30T01:50:29Z")
No, it needs to be tied into the HS3-CAN network and constant or ‘always on’ power. You will need an antenna which will locate on the rear window shelf under the trim panel, and you will need to program the APIM and TCU with FORScan. You might need to change the firmware in the TCU to the latest version for Sync 3. ---
**Author:** ![hunterhumphrey](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/hunterhumphrey/32/15995_2.png) [@hunterhumphrey](https://community.cyanlabs.net/u/hunterhumphrey)\ **Post date:** [30 May 2026 02:09 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/5 "2026-05-30T02:09:02Z")
ok ok so that’s not too terrible thank you for your help ---
**Author:** ![F150Chief](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/f150chief/32/14712_2.png) [@F150Chief](https://community.cyanlabs.net/u/F150Chief)\ **Post date:** [30 May 2026 02:22 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/6 "2026-05-30T02:22:32Z")
[https://community.cyanlabs.net/search?q=tcu%20add%20fusion](https://community.cyanlabs.net/search?q=tcu%20add%20fusion) ---
**Author:** ![hunterhumphrey](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/hunterhumphrey/32/15995_2.png) [@hunterhumphrey](https://community.cyanlabs.net/u/hunterhumphrey)\ **Post date:** [31 May 2026 06:54 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/7 "2026-05-31T06:54:05Z")
so when adding the new tcu, how would i go about wiring it to the hs3-can ---
**Author:** ![system](https://community.cyanlabs.net/letter_avatar_proxy/v4/letter/s/bcef8e/32.png) [@system](https://community.cyanlabs.net/u/system)\ **Post date:** [30 June 2026 06:54 UTC](https://community.cyanlabs.net/t/adding-4g-tcu-to-my-2016-fusion/26553/8 "2026-06-30T06:54:32Z")
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