When installing an amplifier for a car audio system we need to run the power wire through the firewall of the car. What hole do we run the power wire through? How can we make a firewall hole for the positive amplifier cable? Let's take a look at the best practices!
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🔨 Tools and Materials:
✔️ Grommet hole cutting stamp - https://amzn.to/2WWhHFN
✔️ Step Drill - https://amzn.to/2Jovzke
✔️ Large Wire Grommets - https://amzn.to/2JmRsjT
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