my 65 Barracuda questions

my **** is cracked too, seemed to be worse after I got it painted, maybe they put it under heat lamps to dry? Im going to put clear silicone in the crack with my finger just to seal it so water doesnt collect in there, its garaged 100% of the time anyway. My doors look just like that. All stripes were dealer installed so there are not always the same, dimensionally and color