| In order to troubleshoot a dead car speaker, a multimeter is needed to check to see if the speaker is working at all or if it needs to be replaced. Check car speakers by removing door panels with help from an auto mechanic in this free video on car repair and diagnostics. Expert: Tom Brintzenhofe Bio: Tom Brintzenhofe has been a mechanic for the past 17 years. Filmmaker: Reel Media LLC | Views:7980 7ratings |