You will need to remove the floor console to access the cable. If you need help with that let me know.
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Part of it goes from inside the car and part from under the hood. You should not have to lift it that I can remember. The cowl is the metal area that is between the motor and the cockpit, the firewall would be another word for it. I would unhook the battery just as a precaution. Yes, it will pretty much only go in one way, just pay attention to how it is routed coming out. If you need to remove the shift knob, there should be a small horse shoe shaped clip in the front of the knob at the bottom that just pulls out with a small screw driver.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten Tighten the screws to 2 N·m (18 lb in).