I recently installed a set of MB Quart 6x8's in the front doors of my Screw, and don't get me wrong, they sound great. However, I think it could use a little more highs and noticed theres a place in the door where the Audiophile equipped trucks have a tweeter. How beneficial would adding a tweeter be and has anyone tried this yet? Thanks!!

 

I added a tweeter there... sounds great.
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I installed a pair of Infinity 6x8 components, put the crossover in the armrest, and tweeter in factory tweeter spot. ROCKS ***.