New owner here and am looking to detail the engine compartment on a Gen III. Is there anything that needs to be covered up before being sprayed with water? Also is there anything that can be used to darken up the engine mat with the viper logo? The engine isn't really too dirty so is a foam gun effective if I want to stay away from a degreaser???

I know these might be basic questions but don't want to mess anything up on my first detail....been religiously watching Junkman's videos but haven't found any on the viper compartment.....thanks for any advice!