Aftermarket Kenwood Deck non responsive

[Harbinger]

Deck won't power on. Wondering how I should tackle this issue. I'm really hoping its just a wiring issue otherwise I'm royally fucked.

[Intmdtr]

Fuse?

Did you just install it? 12v trigger wire connected?

[ZR]

With key on, check for constant power / check trigger wire. If both ok, not so good.

[Harbinger]

Was installed a year ago. What's a 12v trigger wire?

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[Intmdtr]

The trigger wire is usually blue. It is set to a keyed 12v source, usually ignition. Regular power should come from battery and will have an inline fuse. 12v trigger sends a signal to radio saying key is on and now you can turn on. If you have no power at all to the radio, check the red power wire for an inline fuse, may be under the hood. Check the connection at the battery too.

But you can pull the deck out and check for power at the red wire with key off. Check the blue wire with the key off, should be no power, key on, should get you power.

[Frankie]

Blue wire is an output from the Deck......

You need constant power on the Yellow wire.
Switched power on the red wire.
Blue wire (and Blue/wht wire) are used to turn on external amps and extend your power antenna.

[Harbinger]

Thanks for the information. I'm not very versed in car electronics but I'm a quick learner. I'll keep everyone posted on the progress

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[Scrape]

There is also an inline fuse from +12V (red wire) and also behind the deck there maybe a fuse as well. Check both if applicable. Also check to make sure no wires were pinched when the deck was installed as this could be the cause for a blown fuse if it applies. The harness could have come off as that is quite common as well.

[Harbinger]

Thanks scrape. I'll check everything. I'm just hoping it's a loose wire or fuse rather than the deck biting the dust

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[Intmdtr]

Blue wire is an output from the Deck......

You need constant power on the Yellow wire.
Switched power on the red wire.
Blue wire (and Blue/wht wire) are used to turn on external amps and extend your power antenna.

I stand corrected...yes, the blue wire is switched output wire...

[Harbinger]

Managed to forcibly remove my deck out and disconnected wires, checked the fuse in the back. I reconnected everything and all of a sudden it came on. I'm not entirely sure what caused the disconnect or which wire was responsible but it works...

Fml that front bezel is a PITA!



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[Scrape]

Like I said earlier. Most common fault is a loose connection. Glad you got it sorted out.
Managed to forcibly remove my deck out and disconnected wires, checked the fuse in the back. I reconnected everything and all of a sudden it came on. I'm not entirely sure what caused the disconnect or which wire was responsible but it works...

Fml that front bezel is a PITA!



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[Harbinger]

Thanks!

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[tulowd]

Ground is the most important connection on any electronic device in a car. Since Ford doesn't usually offer a ground in their harness, this connection can be poor, especially if only pulled through the antenna connector, instead of using a ring terminal and screwed/bolted into solid metal.

Fords also have a dimming wire (for dash lights) that shows ground, until the light switch is turned on, when it (magically, lol) turns to +12V; make sure this isn't the case.

Glass fuses can break internally and still function intermittently. The plug in GM/ATO style are more secure. Make sure the fuseholder and it's wires and connections are solid.

Ensure the connections between the car and the radio harness are secure and soldered or crimped and heat shrinked/taped up properly. It can also (rarely) happen that a wire is broken, leading to the intermittent situation. Unlikely the radio is at fault, but it is possible.

[Harbinger]

Thanks for the info :). If it ever goes out again I will triple check everything.


Ground is the most important connection on any electronic device in a car. Since Ford doesn't usually offer a ground in their harness, this connection can be poor, especially if only pulled through the antenna connector, instead of using a ring terminal and screwed/bolted into solid metal.

Fords also have a dimming wire (for dash lights) that shows ground, until the light switch is turned on, when it (magically, lol) turns to +12V; make sure this isn't the case.

Glass fuses can break internally and still function intermittently. The plug in GM/ATO style are more secure. Make sure the fuseholder and it's wires and connections are solid.

Ensure the connections between the car and the radio harness are secure and soldered or crimped and heat shrinked/taped up properly. It can also (rarely) happen that a wire is broken, leading to the intermittent situation. Unlikely the radio is at fault, but it is possible.