Mike you plug areal in to stereo and there is a black wire which must be linked to ignition to power areal amp . The wiring loom is put through to amp left side of glovebox. This is tricky to unplug loom from amp, you then link loom to new amp bypass kit. The autolead bypass kit needs modifying so not on constant and keeps clock illuminated, you have 2 yellow wires joined in to 1 and must disconnect 1. The red wire must be fed to a ignition source such as cigarette port.