My current battery connections are pretty bad, the positive terminal has two fun little wires and a 4ga. wire running to the amp. These are just tacked on with the starter cable. On the negative side the ground is looking pretty weak (and its smaller than the cable going to the amp!). Do replacement cables exist? What is the best way for cleanly attaching my starter and accessories, I know on boats there are nice connectors with clamps for each size wire, does something like this exist in the car world. 
