4000 Series 17ft 2-Channel RCA Stereo Interconnect Cable for Car Audio System...

Auto Car RCA High to Low 2-Channel Line Output Converter with Adjustable Subwoof

2-Channel High to Low RCA Converter for Adding Amplifier Subwoofer to Stereo

Auto Car RCA High to Low 2-Channel Line Output Converter with Adjustable Subw...

Raptor R2R174 RCA 4-Channel R2 Audio Cable - Bulk Series 17 Feet

2-Channel 3 FT 6000 Series Audiophile Grade RCA Interconnect Cable, Subwoofer...

IBLOC01 2-Channel Line Output 40W Adjustable Level Converter (Speaker to RCA)