I am going the reforming route but I discovered one speaker had already been replaced with a 4 ohm pioneer that is not functioning properly. The prior owner cut up the housing so I need a new OEM housing loaded with the 4" woofer and separate tweeter. I think the part number might be 86160-0W290 but I'm not sure. Isn't there a vendor on here who has good pricing for Lexus parts? Also, this might be one example of something different on the Lexus with the Mark Levinson system. I can't go Land Cruiser here can I? Thanks !!!