Can I splice the wires together from a newer AVS cord and an older speaker wire?

If so does it matter what color of the AVS wires I use. I can't remember what ones are just for sound. Please explain in detail how I'd complete this task. Thank you in advance.

Answers:
I do it all the time and have never had any probs,Good luck.

Other answers:
You can try... but not promising anything as for quality...
You can try... but not promising anything as for quality...
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