I have a kenwood cd car radio that was installed in my car... the radio was working fine one day and then not working the next day. I have a blinking display that says "Protect" not sure what that means, but it is not doing anything.
THIS USUALLY MEANS THERE'S A PROBLEM WITH THE INTERNAL AMPLIFIER SO FIRSTLY REMOVE THE RADIO AND CHECK THAT NONE OF THE WIRES ARE TRAPPED AND THEREFORE SHORTING THE OUTPUT. IF NONE OF THE WIRES ARE DAMAGED THEN I'M AFRAID THAT YOU WILL NEED TO REPLACE THE AMP IN THE RADIO
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YES.... to prevent cutting of any factory wiring (this use to be the old install method and requires much more time and expense) and potential electrical fires, you can now buy quite cheaply, what is called a Radio adapter harness.
As you wish to install a Kenwood radio to your Toyota Scion, simply buy an adapter loom which has a 2005 Toyota Plug on one end, with a Kenwood plug on the other (this essentially replaces the wiring loom that came with your Kenwood unit).
So, it's that easy .... Plug and Play.
And... if you sell your Toyota and wish to put your old Toyota radio back in, the original radio just plugs back in. PRESTO !
I would start by disconnecting the radio and hooking it up right,the power should go through the ignition switch.So that when you turn the car off the radio will go off and to hear it on again you have to turn the key to accessory or start it.That might take care of a few of your problems.
this is very simple to do just take your face plate off and were you see a red light blinking just get like a bobby pin or something and pit it through the hole and the radio will reset and that should fix your problem
Your radio will require one of the following procedures.
Type 1 During the code request mode, while holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds (so that “…” disappears). Then using your remote enter your code.
Type 2 Press the "Auto" button and "Track up" on face of radio at the same time. The four dash lines ( . . . . ) should "disappear".
Then using your remote enter your code.
Type 3 Model# DPX-4020 and DPX-4030 Press and hold the 1 then the 6 preset key (preset keys are the buttons on face of radio for storing you "favorite" radio stations). "C" should display. Then using your remote, enter your code.
Enter your number from the remote control unit. Your code number is 5227 (KCAR)
* Press numeric key “5” ( 2 times ) and press the Track UP/Next Track key * Press numeric key “2” ( 3 times ) and press the Track UP/Next Track key * Press numeric key “2” ( 1 time ) and press the Track UP/Next Track key * Press numeric key “7” ( 2 times ) and press the Track UP/Next Track key
The security is canceled and the set enters the TUNER mode!