[Engine-Ear]

I answered a question in another thread that might be useful for more people than who read that thread.

We get a lot of calls and e-mail from people who (for various reasons) want to add more speakers to their factory radios in their old cars.

There are some dos and don'ts but before DOING anything, it important that you understand a few fundamentals concepts. To help out, I created the attached tutorial.

Hope it helps! Any questions, please post a reply. I'll do my best to clarify.

If interested, I will continue to add more information about this topic from time to time.