No, you'll need to hook up some coax cable in addition to the factory wiring. What kind of unit do you have? I went through this recently (nightmare) as nothing was labeled and we had to figure out what connected where and to what using a multimeter.
I would thoroughly recommend a satellite finder.
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2011 Alpine 3500RE
2008 Ford F-350 Lariat Crew Cab, 6.4 Diesel, 4X4 Off-Road Package, Trailer Towing Package
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