it just depends on your ability ,,i very well may take a piece of sheet metal or license plate and make my mou\ting kit,,i want a nice solid area below radio for my 80 shot nos and purge switches(lol the actual purge nozzle is gonna jut out that vent on fender ) ,,,but if you have never done it and hav lil ability then spring for kit it makes it super easy ,,,im old school becaus back in the 80's few places carried kits so if u wanted a nice stero in your dodge demon or truck etc ,,u roughed it ,,thats why all these aftermarket dash places do so well now for old car market , because so many people ruined their dash trim back in the day