Question about Car Speakers & Subwoofers
It's common for the voltage source at the radio to be
weak. Thin wiring and corroded connections create resistance in the
power wiring, which results in a voltage drop when the deck's amplifier
requires more current.
The easiest fix is to run a new power and ground wire directly to the battery from your radio. Depending on the length, some 14-gauge or 16-gauge speaker wire should do nicely. Connect the deck's black wire to your battery's negative terminal, and the yellow wire to the positive terminal. Put a 10-amp fuse on the wire near the positive terminal.
If your deck is wired to turn on and off through a key switch or accessory switch, then leave the deck's red wire connected as it is now; it doesn't require any significant current. Otherwise you can combine the red wire with the yellow wire and connect both to the positive terminal.
Let me know if you have any further questions
Posted on May 06, 2008
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