Hi all, I am interested in installing a sub and amp while retaining everything else stock (head unit, speakers) what would be the simplest way to install these in the boot, I am usto slapping an after market head unit in running the rca's down one side of the car and the power wire down the other hooking up the remote wire and basicaly done.. dose the STD head unit have the rca's output at the rear? if not how would I go about this? Thanks for the advise in advance...