emilio cantu

have an after market stereo that I have tried to install .I bought a harness to connect to the factory harness so I can wire up the aftermarket stereo . Now wat I'm confused about is the wire harness that I bought that will connect to the factory harness has a solid blue wire ....And the wires coming out from the aftermarket stereo has a blue wire so if I connect them together were will I run my remote wire from the amp