So I have a coaxial cable that I need to run from my TV to my sound system and there are already holes in the wall with wires from the last home owner. I've already tried using fishtape to run the cable through but there are too many twists and turns in the route. Are there any other options that I can explore to wire the cable through?
their are times I will cut a hole for an old work box, drill from the attic down or from the crawl space up (attic down is easier as you can see the 2x4) drop a string with a small 2oz fishing weight, hook wire on and pull up, then do the same at the location of your sound system , install an old work box in each location these are the boxes that have wings that pull them tight to the sheetrock, or a low voltage ring that snaps in place and you fold the metal tabs around the sheetrock, then put a coax cover plate and it looks very profesional.
I have had good luck disconnecting one of the existing wires and tying two "pilot" lines to it. Then, I use the wire to pull the pilot lines back through and untie one pilot line, leaving the other tied to the wire. I pull the wire back through and reconnect it. This leaves a pilot line that I can use to pull new cables. Obviously, you should ensure that the wire you use to pull the two pilot lines is not hot before using it for that purpose.