Update. I returned the ACM that was from the 2020 Explorer and was able to obtain a 2019 F-150 ACM from a Lariat that has SDARS, B&O, HD radio and the rectangular connectors but unlike the Explorer radio, it does not have the 3rd white antenna connector, it only has the mustard for Sirius and the black one for AM/FM. I did a comparison between my 2015 F-150 ACM and APIM wiring and the 2019 F-150. The wiring between the ACM and APIM were almost the same but there was a circuit that was not on my 2015 but on the 2019. Granted my 2015 has/had SYNC 2 wiring between the ACM and APIM and the 2019 has SYNC 3 but there were only a few changes. I added 2 wires between the ACM and APIM and also made some changes in the ACM and APIM utilizing FORscan and was able to make it work. I am still playing with it to get it close to my 2020 SD. I attached pics of my paperwork/notes. Hopefully this helps
