Ok so i have bulit a full fiberglass enclosure in my truck that resesses my amp... since the install my amp has been over heating and going into safe mode and shutting of. So I went and picked up 3 12v fans to put above my amp to cool it off. So what i am wondering is: is there a way to hook up these 3 fans to my switch lead so that they come on when my amp comes on?

 

Yup: you need a relay for your remote cable. I think this sticky has all you need to know!