6 speaker upgrade to 10 speaker. Sync 3.4, Focus 1.0 MK3.5 Europe

Hi all. I am wanting to upgrade the sound system. I have 6 speakers. Can I upgrade the ACM to 10 speaker, if so, what are the correct settings via Forscan? Yes I have the center speaker as I upgraded with the ST pod gauge on the dash. And I will add tweeters to the rear doors. Or do I need to buy the F1BT-18C815-ZAH which I believe is the 10 speaker ACM. Also wiring diagram for the speakers.
I would just like to add in an amp for the door speakers plus front center, or use the ACM to power the center, and an amp for the sub. I can not afford a decent DSP at the moment.
I wanted the 10 speaker ACM capability to specifically have the sub out rather than splice off the front speakers.
Any suggestions are more than welcome.
Thanks

This might help… Mk3 Prefacelift Sync 2 8" touchscreen upgrade, How to guide with pics!!! - Page 54 - Ford Focus Club - Ford Owners Club - Ford Forums

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