It seems it isn't the oil cooler after all
I blew off some steam thinking it was their fault, but now I'm thinking I jumped the gun. My OCC was removed by someone else, and for all I know they could have tucked the lines in and shifted them around.
I asked the mods to remove the thread, but I guess it ain't happening.
I thought for sure it was that. I am at a loss at this point, as the rattle is still there. I guess I'll live with it, as the car isn't throwing any codes or lights. I dunno man. I'll just listen to my Sirius XM a lot more now.....