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Join Date: Sep 2007
Location: Lower Sackville, NS, Canada
My Ride: 89 Daytona Shelby TT
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Re: Bench Testing Radios
When you apply power to the switched/ignition 12V by touching the wire to a battery terminal or anything such it will give a good spark because there is alot of current draw to power the amplifiers and other magical circuitry in the radio, if you had a better contact method, such as using a switch you would not notice a spark.
I would say you do not have a short, unless the wire tries to weld itself to the terminal.
Last edited by yellonoma; 02-10-2011 at 03:03 PM.