# Sync 3 Upgrade

**URL:** <https://community.cyanlabs.net/t/sync-3-upgrade/15293>\
**Category:** CyanLabs Update Support\
**Tags:** ACM, oem-replacement, SYNC3, APIM, pre-my20, na, nav\
**Created:** [28 September 2024 23:28 UTC](https://community.cyanlabs.net/t/sync-3-upgrade/15293 "2024-09-28T23:28:21Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mebeach1977](https://community.cyanlabs.net/letter_avatar_proxy/v4/letter/m/e36b37/32.png) [@mebeach1977](https://community.cyanlabs.net/u/mebeach1977)\
**Post date:** [28 September 2024 23:28 UTC](https://community.cyanlabs.net/t/sync-3-upgrade/15293/1 "2024-09-28T23:28:21Z")

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I recently upgraded my 2017 mustang pp1 to sync 3. Everything worked perfectly in had to do the start button fix where you bypass the harness. BUT my radio works just fine but when I use android auto or bluetooth the driver door speaker doesn’t do anything. Any help would be appreciated

* * *

**SYNC Region:** NA

**Navigation Variant:** Nav

**Manufacturer Year:** Pre MY20

**Install Type:** OEM Replacement

**Old SYNC Version:** 2.2.1680

**New SYNC Version:** 3.4.23188

**Do you have a error message, if so what is it?**  
Only possible thing could be the acm error but that’s fkr the antenna. I’m not sure what to do.

**Update Method:** CyanLabs Syn3 Updater

**Syn3 Updater Version:** Not sure

**Syn3 Updater Documentation Read:** yes

**Syn3 Updater Log File**

```no-highlight
Phone

```

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<div class="post-metadata">

**Author:** ![bill32399](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/bill32399/32/2724_2.png) [@bill32399](https://community.cyanlabs.net/u/bill32399)\
**Post date:** [28 September 2024 23:35 UTC](https://community.cyanlabs.net/t/sync-3-upgrade/15293/2 "2024-09-28T23:35:56Z")

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All of the sound comes from the ACM. Your APIM takes the Bluetooth data and moves it to the ACM. I would bet you have bad ACM AB settings.

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<div class="post-metadata">

**Author:** ![mebeach1977](https://community.cyanlabs.net/letter_avatar_proxy/v4/letter/m/e36b37/32.png) [@mebeach1977](https://community.cyanlabs.net/u/mebeach1977)\
**Post date:** [29 September 2024 02:29 UTC](https://community.cyanlabs.net/t/sync-3-upgrade/15293/3 "2024-09-29T02:29:04Z")

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I just put my old acm back in and its working perfectly fine.

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**Author:** ![warlock12118](https://community.cyanlabs.net/letter_avatar_proxy/v4/letter/w/e95f7d/32.png) [@warlock12118](https://community.cyanlabs.net/u/warlock12118)\
**Post date:** [29 September 2024 02:53 UTC](https://community.cyanlabs.net/t/sync-3-upgrade/15293/4 "2024-09-29T02:53:21Z")

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The ACM AB has to match what’s in the APIM AB.  
Odds are the config of the new APIM is quite right.

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<div class="post-metadata">

**Author:** ![system](https://community.cyanlabs.net/letter_avatar_proxy/v4/letter/s/bcef8e/32.png) [@system](https://community.cyanlabs.net/u/system)\
**Post date:** [1 October 2024 02:53 UTC](https://community.cyanlabs.net/t/sync-3-upgrade/15293/5 "2024-10-01T02:53:33Z")

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