# 6 speaker upgrade to 10 speaker. Sync 3.4, Focus 1.0 MK3.5 Europe **URL:** \ **Category:** Discussion\ **Tags:** ACM, DSP, SYNC3, APIM\ **Created:** [9 May 2025 18:16 UTC](https://community.cyanlabs.net/t/6-speaker-upgrade-to-10-speaker-sync-3-4-focus-1-0-mk3-5-europe/21498 "2025-05-09T18:16:37Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Badger1966](https://community.cyanlabs.net/letter_avatar_proxy/v4/letter/b/3bc359/32.png) [@Badger1966](https://community.cyanlabs.net/u/Badger1966)\ **Post date:** [9 May 2025 18:16 UTC](https://community.cyanlabs.net/t/6-speaker-upgrade-to-10-speaker-sync-3-4-focus-1-0-mk3-5-europe/21498/1 "2025-05-09T18:16:37Z")
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 ---
**Author:** ![F150Chief](https://community.cyanlabs.net/user_avatar/community.cyanlabs.net/f150chief/32/14712_2.png) [@F150Chief](https://community.cyanlabs.net/u/F150Chief)\ **Post date:** [9 May 2025 20:41 UTC](https://community.cyanlabs.net/t/6-speaker-upgrade-to-10-speaker-sync-3-4-focus-1-0-mk3-5-europe/21498/2 "2025-05-09T20:41:14Z")
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](https://www.fordownersclub.com/forums/topic/101067-mk3-prefacelift-sync-2-8-touchscreen-upgrade-how-to-guide-with-pics/page/54/)