Kdc-bt555u Wiring Diagram __exclusive__ Official

Even with the diagram in hand, mistakes happen. Here are the most common issues install

Crimp the Black wire to a ring terminal. Sand away paint from a metal bolt behind the dash (not a factory ground strap). Bolt it down tightly. Bad ground is the #1 cause of "no power" issues. Kdc-bt555u Wiring Diagram

Referencing the breakdown above, twist the wires together by function. Even with the diagram in hand, mistakes happen

Double-check your vehicle’s speaker wire colors (they vary dramatically by car brand). Use a 9V battery to "pop" test speakers to identify which wire goes to which corner before connecting to the Kenwood harness. Even with the diagram in hand

If the answer is yes to all three, your wiring is correct.

Even with the diagram, things go wrong. Here is the troubleshooting checklist: