Upgraded ECM from Pre X-40 to X-40 on my Sync3. No Sound with B&O system

The APIM needs to be a K-series (2019) or newer. The JC3T-14G370-ACE APIM will not support the additional wiring. And the KC3T-18D818-CA ACM does not support the B&O audio system. So you probably don’t have that in the truck?

Do you have the B&O logo on the dash center speaker?

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