2005 Jeep Grand Cherokee Nav Radio Wiring Diagram
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Discussion Starter · #1 · (Edited)
Hi,
I bought grand cherokee wk 2005 3.0 crd limited with radio/sat nav main panel which is actually not working. When I turn on the radio it just makes that sound like no radio station found, LCD is still off and no button (except the power button) works. So I bought new standard Kenwood radio with a reduction to iso. I found the cars radio wires schema on the internet and the radio's in supplied user manual and tried to connect the wires directly. No success with turning the new radio on yet. Could you advise me which jeep's wire should be connected to which iso reduction wire? (Supplied original radio/sat nav photo, jeep´s wires and new radio iso reduction wire schema.)
I think that the Cherokee's wires are like this:
constant 12v: red-orange (why twice??)
ground: black (why twice??)
left front speaker: gray-orange (+), gray-yellow (-)
right front speaker: gray-dark green (+), gray-light green (-)
right rear speaker: gray-dark blue (+), gray-tan (-)
left rear speaker: dark green-dark blue (+), dark green-violet (-)
Unrecognised wires:
white, white-orange
I thought to connect wires like this:
Grand Cherokee's wire | is reduction wire
black | black
red-orange (1st) | yellow
?? red-orange (2nd) | blue-white
??? | red
Do you have any suggestions? The speaker wires would be easy then, but I guess they are not needed to power on the radio.
Will be grateful for any suggestion.
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Are you trying to connect the new stereos harness directly to the Jeep? Why not buy a wiring adapter plug, it'll make it much easier.
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Unless the export model is substantially different from the domestic model, there are not standard power or speaker connections at the radio. Power is managed through the CANBUS system and a digital stereo audio signal is fed to the amplifier, which decodes the audio and routes it to the speakers.
You likely need an appropriate CANBUS adapter module and harness.
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Discussion Starter · #4 ·
Thanks for quick replies.
So I bought adapter plug for Grand Cherokee to ISO and the new radio came with ISO (female), so plugged it in, and still cannot turn the radio on. Is there any fuse, that I could check and possibly change for the new one?
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As others have mentioned, it's canbus so a signal rather than sending actual power or audio through the wires. You will either need an adapter or bypass the whole system & start again. Is your adapter definitely for 2005 onwards Grand Cherokee?
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Discussion Starter · #6 ·
Should be, as I asked for that in the shop.
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Discussion Starter · #7 ·
The reason why the radio does not work is that the red-orange wire (which should have power) actually has no power at all. Do you know where is the fuse responsible for the radio?
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If it's a fuse issue your factory unit wouldn't have been working. Plug that back in to make sure it powers up. Does the 12v for the stereo actually carry a voltage or is it a pulse like the rest of the canbus so it's just the wire to tell the unit to power rather than supplying it all? I don't know, I'm just thinking out loud but would make sense why it isn't working with the aftermarket. As a quick fix, splice the 12v & earth on back of cigarette lighter (which are proper 12v from ignition) to power up the unit & test to see your speakers are getting sound. If they don't then just buy a proper harness from crutchfield or sonic. If you want the service manuals with wiring diagrams, message me your email address as if might help you track what you need
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Discussion Starter · #9 ·
I`ll try the cigarette lighter source today. Actually, I can't send you PM, I do not have enough posts yet. I`ll measure it with a multimeter today.
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Discussion Starter · #10 · (Edited)
So I connected 12V from cigarette lighter to red wire and to yellow wire, ground from cigarette lighter connected to the black wire. And the new radio powered on like a charm. But then I connected there all the speakers and the radio gives no sound through them.
I connected it like this:
left front speaker: gray-orange to white, gray-yellow to white-black
right front speaker: gray-dark green to gray, gray-light green to gray-black
right rear speaker: gray-dark blue to violet, gray-tan to violet-black
left rear speaker: dark green-dark blue to green, dark green-violet to green-black
The wires left unused from original connector:
2x black (as I`m using ground from cigarette lighter)
2x red-oragne (as I'm using 12 V form cigarette lighter)
white, white-oragne (do not know what they are for)
The wires left unconnected from the new plug to the new radio:
blue-while (Power control) - do not know what to connect there, but I think that speakers should work anyway.
I'll check the resistance of the speakers today (I read somewhere that they should have 2-3 ohm). But I heard them at the total beginning make the sound as no radio tuned. So I suspect that they are working.
Actually, I took canbus out, can this be the issue why the speakers make no sound? I thought that the canbus is just for making steering wheel controls work.
Do you have any idea how could I make it work completely, as the radio is finally on?
Thanks
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Discussion Starter · #11 ·
This is the canbus that I disconnected. If I need to put it back, then I'm not sure how to connect it there.
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I've PM'd you. I don't fully understand it to be completely honest but pretty sure you will need that radio control module back in for the car to know where to send signals for the audio. The canbus runs throughout the car and as you most likely have an amp in your r/n/s 1/4 panel, the Jeep needs to get the canbus signal to that point before it is converted to true audio. If your new adapter won't allow for the module and you definitely don't want to spend £160 on parts to make this all plug and play, you will either
1. need to plug the module back in, cut the end off the harness you have bought, then splice each wire in (the service manual has all the wiring info in it you should need)
2. bypass it completely and simply run the audio cables from the head unit straight to the speakers. This is going to be the easier option but will be a PITA if you ever want to put the original back in
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Discussion Starter · #13 ·
I looked up video displaying the same issue when the radio is on but speakers are not working (it was with dodge) and the guy said that there is a wire through which I need to send power to the amp. For him, it was blue one and he just connected it to 12V wire. Would you have any idea which wire it could be? White-orange?
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Discussion Starter · #14 ·
I've PM'd you. I don't fully understand it to be completely honest but pretty sure you will need that radio control module back in for the car to know where to send signals for the audio. The canbus runs throughout the car and as you most likely have an amp in your r/n/s 1/4 panel, the Jeep needs to get the canbus signal to that point before it is converted to true audio. If your new adapter won't allow for the module and you definitely don't want to spend £160 on parts to make this all plug and play, you will either
1. need to plug the module back in, cut the end off the harness you have bought, then splice each wire in (the service manual has all the wiring info in it you should need)
2. bypass it completely and simply run the audio cables from the head unit straight to the speakers. This is going to be the easier option but will be a PITA if you ever want to put the original back in
I still don't have enough posts and your PM doesn't contain your email (so I can't send you mine).
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The amp that drives the speakers is controlled via CANBUS. Also if you hooked both the red and yellow to the cigarette lighter the stereo will have no memory, meaning all the settings will reset every time you turn off the Jeep.
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Discussion Starter · #16 ·
The amp that drives the speakers is controlled via CANBUS. Also if you hooked both the red and yellow to the cigarette lighter the stereo will have no memory, meaning all the settings will reset every time you turn off the Jeep.
So I should connect the yellow to power outlet 12V, which should go from the battery?
And I need to connect the CANBUS back, to get it working right?
This is the schema of my CANBUS (spal icb1):
I connected canbus black wire to ground, violet to 12V from cigarette lighter (maybe I should connect it to power outlet, what do you think?).
Then just more or less randomly tried to connect canbus green-black (can low) to white (which should be CAN B BUS (-)).
And canbus green-red (can high) to white-orange (which should be CAN B BUS (+)).
Any idea where to connect the canbus wires?
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Like others have stated you need a CANBUS adapter to make this work properly (I use the one from PAC audio, Amazon has a good price). The only other way to do it is to not use any of the factory wires and completely re-wire the entire audio system (and you will still have some issues).
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Yep I agree. Just be aware that one of the canbus adapters causes issues on the export model where the evic resets back to German every few seconds, even if you keep changing back to english
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^ what they said. The amp has to be told via CANBUS to turn on. Unless your head unit has CANBUS capabilities then it's not going to be able to output the signal to turn on the amp without an adapter.
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your chimes also work through your audio setup via canbus, so if yyou would like to retain those the adapter is your best option.
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Source: https://www.jeepforum.com/forum/f67/grand-cherokee-original-radio-plug-iso-4112713/
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