These brackets allow you to install select 5-1/4" or 6-1/2" speakers in your 1999-06 BMW 3-Series. Important Note: Some 6-1/2" speakers use a larger frame and require a larger cutout. We call these 6-3/4" speakers, and they won't fit in this bracket. This bracket will only work with speakers that require a cutout diameter of 5-1/8" or less.
