You can use one Cat5 with the CELabs product but you can only pass component and digital audio, no analog audio or IR. There are instructions in their install guide for how to crimp your cat5 to do this. If you need the analog audio, you could use two of your 4 RG6's to send the left and right channel of audio with no baluns. If all 4 RG6s aren't used, you could also do component and digital audio on them with no CELabs at all. Or, with some creative wiring, you could use three of the RG6s for component and the CELabs unit for analog audio and IR. Lots of choices.
You can use one Cat5 with the CELabs product but you can only pass component and digital audio, no analog audio or IR. There are instructions in their install guide for how to crimp your cat5 to do this. If you need the analog audio, you could use two of your 4 RG6's to send the left and right channel of audio with no baluns. If all 4 RG6s aren't used, you could also do component and digital audio on them with no CELabs at all. Or, with some creative wiring, you could use three of the RG6s for component and the CELabs unit for analog audio and IR. Lots of choices.