Let me start by saying I've used these exact blue twisted-pair RCA cables to connect my car amp setup for about 3 months now. That matte blue finish? Actually looks way cooler in person than product photos show - gives a premium vibe to my trunk setup.

The good stuff first: The 17ft length is perfect for running under seats/carpets without tension. I measured - it comfortably reaches from my head unit to trunk-mounted amps with 2ft to spare. The oxygen-free copper really does deliver clean signal transfer - zero audible noise or interference during normal playback, even when blasting bass-heavy tracks.

Now the not-so-good: Those gold-plated connectors? Total letdown. Like other reviewers mentioned, they feel flimsy and don't 'click' securely into ports. Had to bend the metal sleeves slightly for a tight fit - not ideal for a $30 cable. Also noticed slight channel imbalance at extreme volumes (right side about 5% quieter).

Pro tip: These work best for secondary connections or budget builds. For critical main channels in competition setups, I'd spend extra on more robust connectors. But if you need affordable multi-channel runs (especially in blue to match Skar amps), these get the job done with minor compromises.