i have a 2003 honda civic , i just need to know how to wire up a pioneer car stero .colors?

Answer 1

By far the simplest way would be to go to Circuit City or Best Buy and purchase a car install kit for about $20. It comes with an adapter for the hole and the wiring harness. That way you dont have to cut your factory harness. The Kit also has all of the wires labeled for you, so no confusion.

Answer 2

get a wire tester and find your hot and remote and accesory wires with the car off the hot (usually red) should light up your tester and then put your key on accesory and (usually yellow) should light up along with the hot and then usually blue is your remote wire then start matching speakers