The multi-core cable made of aluminum-copper alloy is an excellent choice for installing car entertainment devices. The silicone protective cover provides good protection against vibrations and hiccups and is easier to pull into tight places than traditional cables with a plastic-based protective cover.
General Purposes 10mm²: 2-channel basic amplifiers, car refrigerator sockets, DSPs, compact active basses, etc. 20mm²: 4-channel basic amplifiers, light subwoofer mono terminals 35mm²: medium-power 4- and 2-channel amplifiers, mono terminals 50mm²: configurations of several amplifiers, efficient mono terminals, light sound pressure competition
The list is indicative. The length of the cable and the amount of current required by the amplifiers determine the final cable strength required. You can find calculators and guides on websites and books focused on the field.