How do i connect my dash kit in my car? on 2001 Mercury Sable

I want to install my sound system into my car. I just need to make sure i'm connecting the right wires.

Asked by for the 2001 Mercury Sable
Usually the wires are labeled on the new deck & some of the old wires. Black is ground Red is Power, usually a yellow power. The speaker wires will be the same color behind the dash as at the speaker. Easy.
2 answers
You will need a wiring diagram and a test light or voltmeter to perform this job correctly and safely.