Hi I am looking for some help with an upgrade on the horizon. I own a 2017 es350 I am looking at replacing the speakers and amplifier/ dsp unit with an aftermarket upgrade. I currently have the 10speaker non Mark with Nav. I will be adding a 5 channel amp with built in dsp controls.Additionally I will be also adding a 12 inch sub. My question is after disconnecting the stock amplifier I am looking for little help figuring out what color wires will be carrying the low level input signals from the stock receiver that I will need run to the amplifier for a signal source. Also what color wire would be used for the power turn on/ remote lead. Thanks for any help or direction you can point me in to help out. Thanks!