Digital Optical Audio Cable - Do I take the little clear plastic things off the end?

Question

I just bought a digital audio optical cable... and it has these little plastic things covering the metal part, do I remove those before I put them in the slots?

Thank you!

Answer 1

Yes!  If you dont it wont fit and if you force it in you could break the wire or port.

Answer 2

Yes.

I actually installed some, but the sound sometimes cut out until I removed the little plastic dust-cap from the metal tips.