Justblan1984 Report post Posted May 4, 2018 Has anyone tried or know what it would involve to switch from the standard SYNC 4” System to the upgraded SYNC 3 8” System and adding the rear deck speakers? Quote Share this post Link to post Share on other sites
billford Report post Posted May 6, 2018 (edited) Don't change anything if its under warranty Edited May 6, 2018 by billford Quote Share this post Link to post Share on other sites
Justblan1984 Report post Posted May 6, 2018 Just passed 36,000 miles a week ago warrnaty is done. Quote Share this post Link to post Share on other sites
LASooner Report post Posted February 9, 2019 Has anyone tried or know what it would involve to switch from the standard SYNC 4” System to the upgraded SYNC 3 8” System and adding the rear deck speakers? https://www.4dtech.com/13-16-ford-fusion-4-to-8-touchscreen-conversion-w-sync-3/ Quote Share this post Link to post Share on other sites