Hi Bigun635,
Thanks for your post and apologies to hear you're having an issue with a crackling sound.
As mentioned by japitts, we do need to determine if you mean the sound on your TV coming from the V6 or whether the sound is actually from the box itself. If the latter, we will need to book an engineer to come out and check things.
Can you pop back and let us know asap so we can help you further.
Many thanks,