Those dual players are horrid for noise.
Alternator wine is usually caused by a grounding issue. Try cleaning the ground on your battery, and move the ground for your amp around. Ive seen moving a ground 2" make a difference.
The problem lies within a ground loop being created between the deck and the factory amp of your truck, making sure all the grounds are good is a good start, sometimes moving them around will help.
Ive seen binders upon binders of the causes and fixes for this problem. Most of which are ground related.