Please help. Im trying to wire a system in my moms 2000 ford expedition. (1 memphis "12, 1 sony xplod "12, and a 600 watt crunch amp) I ran my rca's by splicing into the factory amp and relaying the factory and then ran my remote from my fuse box. Then i ran my ground from a bolt by my factory amp (it works as a ground because i backed my car up to it and ran my ground to its sytem and it worked perfectly) then i ran my power wire from the battery in the truck, it worked for like 2 seconds but then the subs started breathing and making a whining noise. So ran my power wire from another vehicle and it worked fine. Please help
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