Running cables under carpet. Any great methods?

Yeah, fish tape is the easiest. If this isn't flat wire, which I'm suspecting it is not, you may have to make runs in and out of a corner rather than going straight across the room. Don't want to create a mole tunnel in the middle of the room.

There is underlay under the carpet that is stapled to the floor so using a fish tape may be difficult . The last time I went the full route and removed the carpet and underlay and routered out a trough in the plywood next to the wall , this worked out very well , the better half decided it would be a good time to have new carpeting installed , so the project cost a little extra but we were both happy when it was done . I have also ran cable along the corner and had custom baseboard made to cover it .

Bad idea HELLO!

The main problem with running cables under a carpet is damaged to the cables. People will step on the spot and the cables can get damaged over time. It is best to put the cable under both the carpet and the padding. If you just put the cable under the carpet there will be a bump where a crease can form. You can try a fish tape but fiberglass rods are the easiest. They won't bend and get stuck as easily. I was a custom cable installer for more years than I care to mention so I have done it a few times.

The way I did my cables was to run it through the basement. I did a small wall fish about a foot to the basement on each side. Then I ran the cables down through the wall to the basement and up the other wall. But it all depends on what your floors are made of. I have original Victorian hard wood floors that I did not want to damage. If the floor is just plywood then I would not be that concerned.

Yeah, I figured its gonna be tough. There is no basement in my home. It is upstairs, but there is no way to go between the floors with all the fire blocks and such. I have contemplated trying to shove it between the edge of the carpet and the base board but there are two places that need to cross doorways.
I did use the fishtape on my original instalation accross the one doorway. It was a bear as the tape wanted to go everywhere but where I wanted it. But I did get it through eventually.
Thanks for the input. Perhaps I can sweet talk my way into keeping it where it is. I dont know which chore would be the harder one! Regards to all, John