[Richard]

A tip for anyone installing speakers. For the best performance and sound quality. You always want to seal the front of the speaker from the back. Leaving the grill open around the speaker or leaving air holes around the mounting baffle will kill mid and lower frequency's. Many car speakers are meant for "open baffle" Meaning they need no enclosure or a large one. Understand that sometimes people do not have the means for that and there will be a compromise. The front of the speaker still needs to be separated from the back for best sound quality.