Ok i tried a few more things to try and get rid of the static when the engine is runing, Remember its not just from the sub, its from the 6inch speakers also that are powered by the headunit. I discovered that my dad had grounded to the ciggie lighter or something :S and well it works best out everything ive tried! Im getting so angry i might want to fit the stock headunit back in.... its so depressing that i spent like over 1grand on all of this and its just F**K*D pardon my language, it slightly angry. Any other opinions on what i could try :S

if ur so p****d off go to a shop and get them to fix it.

you should ground dirrect to the battery from wat i've read..

yeah i probadly will take it to a shop and get them to fix it, but its a case of money atm as im a student and i have lake of fund's . I just pulled the cables out... it is the grounding... but where should i connect it to