im setting up an amp in the rear of my car, and i need to route a power cable from the battery to the amp itself. now i was told to just route it through the gromet already installed in the firewall, but there is not really any space to fit another wire through. so i have another gromet that i am going to install but i need to know the best place to drill the hole and install it. i have a 2002 accord ex 2 door, so if anyone could either tell me the best place to route the cable or the best place to put a new gromet, that would be pretty usefiul, considering i want to hook up my amp asap.