Filter Filters Plymouth 400 Remove All Filters Price $50-$100 (1) $100-$500 (1) Condition New (2) Brand Harmony Audio (1) Kicker (1) Plymouth 400 1982-1983 Factory Speaker Upgrade Harmony R35 R68 Package New $77.99 Plymouth 400 1982-1983 Factory Speaker Upgrade Kicker DSC35 DSC68 Package New $129.98