So i have an alpine cda 9815, i was stiffening my coilovers and when i took it for a spin i notice my music wasnt playing. There is no powere to my deck whatsoever, it was working fine earlier then all of a sudden it doesnt want to power. no power to my sub and amp, also i checked the fuses and none were burnt. i popped the deck off to double dheck all wires. power wires are connected[blue with white stripe]. ground wire[black] all seemed fine just no power. need help diagnosing.

 

Is your power wire (yellow) connected? accessory wire (red) connected? Are they getting power? Use a voltage tester for that. If your deck doesn't come on then your speakers won't power because no power is coming from the deck to the remote wire which tells your amps to cut on. If your power and accessory wire are getting power and your ground wire (black) is connected and/or grounded, you should make sure that your radio is grounded. Some radios won't power without the actual unit being grounded. Let me know what you get.

 

Got it working, thanks

 

Happy to help. What was the problem?