has anyone tried adding speaker baffles to your door speakers or rear speakers or does anyone know if it makes a difference? I have MB quart door speakers and I want to get the best sound out of them.
If you mean the foam baffles available from companies like XTC, yes I use them all the time and they help create more defined midbass as well as help protect the speakers from moisture damage.
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Support the12volt.comSpeaker baffles, or "hats", will not improve the sound. They will reduce or eliminate backwave distortion in the rear speakers if the backsides of those are subject to the soundwaves from the subwoofer, though. In the front doors, the hat can help to keep errant carwash water from dripping onto the speaker, but the backside of the hat should be cut out so that the speaker will function properly in the door cavity.
There are many, many other ways of improving sound...some of which you may not yet have explored. The first, for doors? Plenty of Dynamat or the equivalent on all sheet metal. Also, a solid mounting on the door panel, which could be enhanced by making an MDF or plywood baffle that has a cutout for the speaker. Use moisture-preventive finish on the baffle first.
Then, the positioning of the tweeter both in relationship to your hearing position and to the mid driver is very important. Experiment with positioning.
The list continues on for awhile...
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
*oops!
Like I always say, I learn something new every time I come to this forum! 
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
thanks everyone for the replies, it seems like my door speakers have to strugle to keep up with my subs for sound. they are powered off the deck, I'm gonna try adding a second amp for them, but I wanted to see if their was other ways vs plunking down some cash for another amp.