Available in 5 different sizes — priced by the foot (12-gauge)
2019-21 Volkswagen Jetta Speaker Wiring Guide (not available through crutchfield) : r/Volkswagen
Crutchfield CSW9W-20 9-wire Speaker Cable — 20-foot, 58% OFF
Crutchfield 14 Gauge in-Wall 2 Conductor Wire, 100 Foot Roll : Electronics
A guide to car stereo wiring harnesses
14-gauge, 2-conductor wire (100-ft. roll)
Crutchfield In-wall Speaker Wire
Quality on Crutchfield amplifier wiring kit??? : r/CarAV
AudioQuest G2 50ft (15.24m) Bulk Speaker Cable - 16 AWG - White Jacket
16-gauge wire (50-ft. roll)
Crutchfield Speaker Wire
OSD 12/2 CL3 Speaker Cable (500 feet, Black) 12-gauge, 2-conductor direct-burial-rated speaker wire at Crutchfield
Crutchfield 14 Gauge Speaker Wire 15 Foot, 2 Conductors W/Banana Terminals