On Apr 14, 12:15*am, Jo wrote:
Any thoughts?

I would look for a way to simplify the run. Sounds like it's in-the-
house, then out-of-the-house, then over-the-roof, then back-in-the-
house, then into-the-attic, to some cockamaime splitter, then on to
God knows where...

First rule of snaking cable, do not pull on the connector. You should
be snaking bare cable, and adding the connector afterward.

You will need a cable snake, available at any big box home store,
hardware, and Harbor Freight.

You may have to widen the holes if you want to have both cables
available simultaneously. There are ways to cover up the holes
tastefully after you're done.

The job will involve a lot of poking, prodding, pulling, twisting,
jerking, sweating, cussing, and swearing. Good luck.