The wires are fine. Font worry about the k line.
I am in the process of collecting parts to replace my radio. I intend on replacing both the speakers and the headunit at the same time. However, I wanted to know what is the best way to do this. Should I use the existing wires and wiring harness?
I was thinking I could remove the current speakers and connect them to the wires that are already there but something tells me maybe I should upgrade the wires as well. When I do this do I go all the way back to the harness that connects to the radio? I am concerned about doing this because of the K Line involved.