I have a 2007 G6 base model that does NOT have the monsoon system. I am wanting to put an amp on the stock stereo and run a sub off of it. I know of a line out converter, but what I need to know is what wires I tap into to hook up the line out converter, and what wire I can use as the 12v switched power to run to the line out converter. Basically step by step instructions on adding this line out converter, amp, and sub. Please help and be as specific as possible, any diagrams would be helpful. Thanks.