hi i got jbl 6x9s on the parcel shelf and just took my mrk1 dash out. wanna know the exact size of the speakers to replace them and any suggestions what to put in there. im leaning towards the same make at the moment. if u have suggestions could u leave a price and model number for me if u can. i was also thinking is it worth shelling out for some speaker or should i just fade the ones i have so that the 6x9s are dominating?