Best shielded rca cables for car audio

Is there such a thing as a shielded Rca cable that does what it promises and if so, what should I look out for in such a cable? I've seen some subwoofer cables but the shielding is sometimes connected to one end, sometimes to none, single shielded or double shielded.

My speakers are powered but have only rca inputs. I've used a generec thin rca cable which works fine; but I noticed some background noise/hum recently, which increases when the cable comes close to an extension cord. Which is the reason for asking:

Are there any good shielded rca cables you can recommend?

Hard to go wrong with anything using coax, like RG-59.

For short RCA analog cables, any coax with a braided shield will be good.
For long RCA analog cables (say well over 5 meters/15 feet) a coax with a heavey braided shield like the B.J.C. LC-1 and some other coax cables is needed.

See other threads on this topic.

Of course BJC, but for a bit cheaper I also like Ghent Audios Choseal 4N-OFC RCA or Canare L-4E6S Star Quad.

Star Quad is great for balanced, but not so good for RCA. Apart from that there's a whole thread about this already.

Of course BJC (98% coverage), but for a bit cheaper I also like Ghent Audios Choseal 4N-OFC RCA (99.9% coverage).

Do they have real specs?

I just ordered some RG-59. Thanks everyone!

Hard to go wrong with anything using coax, like RG-59.

Yep, and the bonus with RG59 is that you can use for SPDIF Coax as well.

WTH people, have you not heard of XLR?!
Choose your devices accordingly!

WTH people, have you not heard of XLR?!
Choose your devices accordingly!

Yes, I know. It was before I joined the asr forum that I bought the speakers. They sound great but don't have xlr, only rca and b&o's own powerlink based on a din cable.

Okey, my bad, sorry for the language.
If you get 50/60 Hz mains related hum, 1st tip in all books: hook all electrically connected devices to the same power outlet in the wall. 2nd tip: use an isolator for rca cable, one that cuts the electrical connection.

Shielding usually helps against radio interference in long cable runs, it should do anything to mains hum. I've run speaker leads tied to power cords without problems.