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  1. UPGRADE TO HD RADIO-1/2 Fail The Transit Connect premium factory audio head unit (Audio Control Module, ACM) for the TC comes in two configurations that I have identified: with Sat and HD Radio and without Sat and HD. I wanted to upgrade my ACM to HD radio. I read numerous posts on the F150, Fusion and Escape forums that showed this was possible. I would need a new ACM and need to reconfigure its programming using Forscan. But my TC is configured with the small center console LCD display and the successful upgrades were made with vehicles that had the larger display. Here are some of the forum threads I used. Livinitup at the F150 forum decoded the ACM configuration. His spreadsheet is the Forscan modification bible. https://docs.google.com/spreadsheets/d/1uDSQ1Z5a2Wt8-kjrSiVSlDFGFHnfeuhb3RTMVz95730/edit#gid=338817466 https://www.fordescape.org/forum/3g-electronics-audio-lighting/73513-2016-se-upgrade-hd-radio.html#/topics/88162?page=4 Tutorial https://docs.google.com/document/d/1-8dKaS_Spu4Zw4hV_CrKC4tLoP9G8yejqegF1wxIqxY/edit I found a used ACM for $100. The units are the same for 2014-2017 (maybe 2018?) TCs. Sat/HD units are easily identified by a HD radio logo on the label and an extra antenna connection for Sat radio. SAT/HD units have a “C” suffix in the part number: Standard unit DT1T-19C107-Ax Sat/HD unit DT1T-19C107-Cx (CA,CB etc..) The F150 spreadsheet in general is not useful for Focus, TC and Escape owners because most of the functions in our cars use Central Configuration to make changes. But the ACM is a stand-alone module and you can change by manually editing data bits in each memory location (register) like the F150 and Fusions. The spreadsheet shows configurations for the standard ACMs and the Sony premium ACMs (not available for the TC). After a lot of research I saw there were a couple of key registers in HD radios that were different from my ACM. Long story short, I installed the new ACM and changed the following: 727-01-01 x8xx xxxx xxxx change to x0xx xxxx xxxx (8=no HD, 0=HD radio) All other registers were tested with the original and the new ACM config without any difference in function. They likely relate to Sat radio functions and that is turned “off” in the original configuration by the first bit in 727-01-01 Xxxxx xxxx xxxx. My ACM config: Does it work? Maybe. The small LCD display does not appear to have the ability to display the “HD” radio icon when an HD station is identified. HD radio units will automatically play stations in HD or analog depending on what’s available. If the HD signal is too weak the station switches to analog. If I ever hear this switch I will know the HD radio is working. There are no DTCs and all radio functions work. FYI, the various forums noted that ACMs were made by Sony and Sanyo. The circuity in the TC ACM has no manufacturer markings. The controller chip on the CD drive is made by Pioneer. If you added a Sat radio antenna you could find the ACM sat radio serial number and subscribe. PRE-AMP AUDIO OUTPUTS-Fail DanMc85 at the 2G Fusion forum found the ACM can be configured with pre-amp outputs for the audio signals. http://www.2gfusions.net/showthread.php?tid=3704 727-01-01 xx0x xxxx xxxx change to xx5x xxxx xxxx I tested this with my existing speaker level inputs into my amp and the change reduced the signal going into the amp. So I rewired the amp using the RCA inputs. But the new low level signal is too low. The amp did not have enough gain to amplify the signal properly. The ACM in the TC is different from the one’s used in the F150 and Fusion. The pre-amp signal is not 4V. I saw a recent post where someone else had the same problem and measured the signal at 0.5V. This modification does not work. Final note: These modifications are safe because you are only changing the ACM. It is a simple, stand alone module that is probably impossible to brick and replacements are cheap. Many of the ACM settings in the spreadsheet don’t apply to the non-Sony ACM used in the TC. .