Ok...this is quite simple, think of it as adding an extra outlet next to the garage door opener in the garage.....
An alternator WILL work much better than a generator for what you are trying to accomplish because the alternator is able to provide a constant output at idle and low rpms where as a generator does not. As you know solid state devices will have a longer life when they run on a constant voltage.
So what you need is an alternator from a 1973 thru 1985 GM Vehicle, which will have an internal solid state regulator. Next you will need a DA Plug to wire the alternator into your original system, and the DA Plug will come with the instructions on how to do all of that.
If you have any further questions please drop me an e-mail...thanks Randy
