Primary Wire SpecificationsAUTO POWER CABLE , Primary wire Conductor : CCA , Copper Insulation : 65 ,70 ,90, ... which deserves the absolute best in A/V performance.Specification:AUTO POWER CABLE , Primary wire Conductor : CCA , Copper Insulation : 65 ,70 ,90 ... degree PVC Specifications 8AWG 8.3mm2 OD:6.5mm10AWG 5.26mm2 OD:5.5mm12AWG 3.31mm2 OD:4.5mm14AWG 2.08mm2 OD ...