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<blockquote data-quote="MkKin420" data-source="post: 5668281" data-attributes="member: 603251">Do you have an amp besides the headunit, if so and you are not using rca&#039;s then you must be using the high-level or speaker level inputs on the amp. Also, Always disconnect the negative battery terminal first and set it away from the battery terminal and if you have to, wrap it in a cloth or somthing else thats dry to keep it from touching the battery terminal, just to be safe. It is not absolutely necessary to remove the positive terminal as negative is the point of all return, IIRC. But it never hurts to take it off while your at it just to be safe as well.I own a jvc headunit and had issues with the factory ground so I spliced a 14 gauge wire along with the factory ground with a couple crimp on butt connectors to make a y shape in the end and grounded the wire to stripped and sanded bare metal under the dash and have not had a problem since. Use a ring terminal at the end of your ground wire and a nut, bolt, and lock washer to secure it.</blockquote>

[QUOTE="MkKin420, post: 5668281, member: 603251"] Do you have an amp besides the headunit, if so and you are not using rca's then you must be using the high-level or speaker level inputs on the amp. Also, [B]Always disconnect the negative battery terminal first[/B] and set it away from the battery terminal and if you have to, wrap it in a cloth or somthing else thats dry to keep it from touching the battery terminal, just to be safe. It is not absolutely necessary to remove the positive terminal as negative is the point of all return, IIRC. But it never hurts to take it off while your at it just to be safe as well. I own a jvc headunit and had issues with the factory ground so I spliced a 14 gauge wire along with the factory ground with a couple crimp on butt connectors to make a y shape in the end and grounded the wire to stripped and sanded bare metal under the dash and have not had a problem since. Use a ring terminal at the end of your ground wire and a nut, bolt, and lock washer to secure it. [/QUOTE]

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