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well here we go how do you have your pioneer radio connected . did you run the radio speaker wire out to the factory speaker or did you have an amp connected to the rca output jacks.
1 well if the radio connect by the speaker wire out the output chip in the radio is fried and needs repair ....
2. if u have a amp connected to power your speakers for sound check the amp to make sure you have power and no lose connection or speaker wires disconnected. 3. it also possible that the rca jacks are fried too
I no by experience that pioneer loses ground on the audio output jack (rca) well what we did to fix it is.. take and 18 gauge wire stripe back about 1/2" to 1" of the insulation to expose the copper wire and wrap this around the metal casing of the rca jacks and then ground the wire to a ground point do this for both left and right rca jacks...
The "PROTECT" message is associated with an audio output issue. This is usually a shorted / damaged / mis-wired speaker output wire(s) between the the radio and speakers or external amplifier, but may be a damaged output transistor inside the radio.
Carefully inspect the speaker output wires of the radio. Make sure all are intact, insulation is not chafed, stripped or otherwise damaged. Tape or repair when found. Double check the wiring (if this is a new installation) to be sure it is correct. Rewire as needed.
After making repairs, power up the radio and see if it works. If it does not, damage has probably occurred inside the radio as a result of the damaged speaker wiring being allowed to exist too long or turning to volume up for even a relatively short period of time. It can also happen if connected to very low impedance speakers. Any of these conditions can cause internal components to fail. The radio will probably have to be professionally repaired to play as expected again.
Hopefully, you'll find and correct a speaker wire problem and it will play again. If my reply was helpful, please rate it "4 thumbs up". Thanks & good luck!
Wiring Diagram / Color Codes 1. Power Antenna (dark blue wire) - Connect to power antenna or amplifier. 2. Ground (black wire) - Connect to ground terminal or clean, unpainted part of chassis. 3. Memory/Battery (yellow wire) - Connect to battery or 12 volt power source that is always on. The radio will not work if this wire is not connected. 4. Accessory/Ignition (red wire) - Connect to existing radio wire or radio fuse. 5. Left front speaker - White/Black is negative, White is positive 6. Right front speaker - Gray/Black is negative, Gray is positive 7. Left rear speaker - Green/Black is negative, Green is positive 8. Right rear speaker - Violet/Black is negative, Violet is positive 9. RCA Outputs to Amplifier - Black is front, Gray is rear 10. Auxiliary Input Cable 11. Subwoofer Output 12. Antenna 13. CD Changer
The manual is available here: http://diversesolutions.org/files/CD4610.pdf
The amps are located inside the radio. Most in-dash receivers that provide for "pre-amp outputs" also called "low level outputs" do so by providing female RCA type jacks. These are often found at the end of a short (4 - 6 inch) cable and are usually color coded red & white or red & black (some receivers provide a yellow RCA jack for video in / out, too). To use these RCA audio jacks, you need to realize that one jack is for the left channel source and the other is for the right channel source for a stereo signal. You will have to connect a compatible plug and cable of enough length to extend to a remote amplifier's RCA input jacks. The vehicle's speakers would also need to be connected directly to the same amplifier's output terminals. Using the two audio (left and right) RCA jacks will only allow the radio to control balance of the left and right audio, no fader (front and rear) control is possible. To get fader control, you'd have to either have a radio with four RCA low level output jacks (front L & R *and* rear L & R), or use the radio's speaker (or high level output) wires and connect them to the amplifier's speaker (or high level) input terminals.
All unused receiver wires should be terminated in a wirenut or securely wrapped in electrical tape to prevent accidental contact with grounded metal or other wires behind the dash.
The RCA jacks on the back of the Pioneer DEH-1500 are preamp outputs, not inputs. They are to connect an external amplifier for additional speakers or subwoofers.
The output from your iPod is probably "bleeding over" into the receiver detector stage. When the antenna is disconnected, the signal passes into the amp by itself. Connecting the antenna provides enough signal so that both are amplified.
To connect the iPod, you need to purchase a wireless iPod adapter, or a new head unit that includes an "AUX" input or a dedicated adapter for the iPod.
With out an input jack you cannot connect straight to your head unit. The RCA out puts only send a signal out. Your best bet is use an FM transmitter for your Ipod. The sound wont be as good but I can't think of another way with buying a new head unit.
Use the speaker wire outputs on the wiring harness on the back of the radio. The RCA outputs are for using an external amplifier, so you do not want to use them. The speaker wires should be color coded. The front speakers are normally grey and grey with a black stripe for one side, and then white and white with a black stripe for the other side (left and right sides)
The rear speakers are violet and violet with a black stripe and the other rear is green and green with a black stripe. All the solid colors are the positive speaker output and the wires with the black stripe are the negative speaker outputs.
These speaker outputs are on the same harness as the power connections to power up the radio. I believe that it has more than 10 wires on it. I am not sure what socket you speak of that is 10 pin and has speaker outputs. The speaker outputs alone are 8 wires, so the harness will have more than 10 wires. It also has the yellow wire for constant 12 volts to keep memory, the red wire to connect to 12 volts when the vehicle is on, and the black wire for the ground. Then it should also have a blue wire for use with an external amplifier to turn it on or to use for a power antenna to turn it on. You may also find several other wires on it like the orange for illumination and brown for muting the radio when a phone is in use. Those last few wires do not need to be used unless you want them for a specific purpose.