Available in 5 different sizes — priced by the foot (16-gauge)
Crutchfield 16 Gauge In-Wall 4 Conductor Wire, 100 Foot Roll
Speaker wire: How to choose the right gauge and type
Monoprice Affinity Premium braided speaker wire combines great looks and durability with exceptional sonic performance, making it the ideal speaker wire solution for the serious audiophile. The 14AWG copper conductors have been tinned to prevent corrosion and the braided fabric outer jacket not only helps prevent damage to the jacket, but also won't scratch your speaker cabinets.
Monoprice Affinity Premium 14AWG Braided Speaker Wire with Gold Plated Banana Plug Connectors, 6ft 2-Pack
16-gauge, 4-conductor wire (500-ft. roll)
Crutchfield In-wall Speaker Wire
Crutchfield Amp Wiring Kit 10 gauge
Need speaker wire. More info in comments. : r/CarAV
Crutchfield CSW9W-20 9-wire Speaker Cable — 20-foot, 58% OFF
Crutchfield CMRGBS50 Marine grade 6-conductor speaker/RGB cable — 50 feet at Crutchfield
How to run wires for in-wall speakers
Crutchfield Speaker Wire, 55% OFF
Monoprice Premium Braided Speaker Wire 14AWG - With Gold Plated Banana Plug Connectors - Affinity Series, 4 Pack, 3 Feet : Electronics