2003 LX 470 Mark Levinson
Wires to rear subwoofer get no power
Symptoms:
✅ All 4 door speakers, radio and nav work properly
✅ The amp (passenger seat) gets power, fan spins. Blue/yellow wire at amp shows 14 volts
❌ wires (blue/white & blue/black) at rear sub show 0 volts
❌ the same wires show...