Stop kenwood KDC-mp239 loosing radio settings with ignition off
I have been advised to cross over the power wires on this radio cd player when fitted to a European car (Holden Barina) to prevent the radio station settings from being dropped when the ignition is switched. This seems electrcially dangerous however when the wiring is matched colour for colour and the ignition is switched off, the tuning for the radio stations is lost. Any comments?
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Re: Stop kenwood KDC-mp239 loosing radio settings with...
You have two power leads bringing battery power into the radio.
One is switched off when the ignition is off and the other power lead
is always on. That second one is the one you may have wired
wrong. You need to check that one out to make sure it stays on
when the key is turned off. Good luck.
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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.
are you sure you have power going to the red wire? the red wire needs to be connected to a switched (ignition) power source. the radio will not work unless both the red and yellow wires are getting power.
could be bad ground or you crossed the yellowwith the red wire. yellow is battery red is ignition and you usually dont use the other ones unless its a newer vehicle. also these ones have 2 blue wires 1 power ant and the remote lead
once you have the station you want to listen to on the radio press and hold one of the buttons along the bottom of the stereos face for a few seconds the screen should flash for a second or two or it should beep as well to indicate its saved it.
if when you turn the ignition off and then turn it back on the stereo has forgotten the station you programmed you need to remove the stereo from the car and check the wiring at the back of the unit. most of them have a red and yellow wire that are joined by metal push fit connectors, swap these two over and it will then remember the station for you.
the red wire is the switched power lead from the ignition and the yellow lead is a constant live feed for it to remember your settings, if these are round the wrong way it will keep forgetting radio stations you program until you switch them over.
you must of traped a wire when you have fitted the head unit to the car when you have pushed it into the dash or the call wire is going to earth on something behind the radio in the dash hope you fine it hope ive help you let me now how you get on
you need to hook the yellow wire off the back of the radio up straight to the battery this keeps memory power to the head unit then wire the wires in color coded sequence red to red black to black so on and so forth if this doesnt fix it you might want to think about replacing head unit
if you have the wire connector it's easy.....give the negative conection to the body of the player..find the wire from the battery with has the power supply even when the switch is off..and connect it to the yellow wire.that is for the memory...find the wire which has the power when the switch is on ,and connect it to the red wire from the player....what i mean by switch is the ignition switch... u can easily find the speaker connections...most speaker wires comes as blue,ash,green,white...there are two wires from each colour......
No ur radio is fine to fit the wiring harness into ur dodge the wiring has been crossed so it wont work, if u go 2 the Kenwood US site and down load the KDC MP 228 manual it has a good wiring dirgram and with a bit of work u can work out what goes where :0 Hope this helps
Turn on the car so the radio is flashing "Protect." Look on the front / removable face of the stereo. On it you will find a small round hole - that's a reset button. Find a small paper clip, unfold the clip and stick it gently into the hole. The "Protect" will stop flashing, and Kenwood will be displayed. Unfortunately all your settings/presets will be gone, but at least the stereo is working again!