Car audio accessories are what make an install safe, tidy and noise-free. This section covers amp wiring kits, power cable, speaker and subwoofer wire, RCA interconnects, fuses, fuse holders and circuit breakers, distribution blocks and ring terminals, plus audio processors, line output converters, remote bass controls, sound deadening and smartphone cables.

Brands include Aerpro (Maxcor and Bassix), Stinger, DNA, DS18, Rockford Fosgate, JL Audio, Fusion, Hertz, Boss Audio, Dynamat and Ballistic. If you're adding an amplifier, start with a wiring kit sized to its power, add a fuse close to the battery and use quality RCA leads. With a factory stereo, a line output converter and some sound deadening in the doors can make a big difference.