Intall problem
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Intall problem
I am replacing my stock REF radio with a factory RAK unit. The new unit will not work. The clock works and the unit will load and eject CD's. My problem is the unit will not turn on when the on button is pushed. When I reinstalled my old radio it did keep the presets even though it was without power while unistalled. This makes me think my problem might be a computer recognition problem. Am I on the right track? If so how do I fix? If anyone has any other inputs please advise.
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Joined: Nov 2006
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RE: Intall problem
It's a data system in some newer Chryslers that loops through the vehicle to the computer and tells it various things. In the Magnum's case, there is no accessory wire behind the radio to turn the radio on when you turn the key, the vehicles computer tells it to turn on via data sent through the Can-Bus system. In vehicles with Navigation, the Can-Bus system also supplies the Speed pulse, and reverse trigger through the Can-Bus. To my knowledge, Jeeps have not aquired the system yet. So that radio you have has nothing to tell it to turn on. You have an accessory wire in the jeep, but since the Magnum used Can-Bus to turn the radio on, that wire does nothing when it reaches the radio. Basically, that radio will NOT turn on unless it is in a vehicle with a Can-Bus system.
Newer GM's have the same system essentially. With those, unless you use a special adapter, you can't even check diagnostics codes if the radio isn't plugged in. Everything loops through the radio. It's crazy.
Newer GM's have the same system essentially. With those, unless you use a special adapter, you can't even check diagnostics codes if the radio isn't plugged in. Everything loops through the radio. It's crazy.
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Joined: Apr 2006
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RE: Intall problem
ORIGINAL: rtkota5point9
It's a data system in some newer Chryslers that loops through the vehicle to the computer and tells it various things. In the Magnum's case, there is no accessory wire behind the radio to turn the radio on when you turn the key, the vehicles computer tells it to turn on via data sent through the Can-Bus system. In vehicles with Navigation, the Can-Bus system also supplies the Speed pulse, and reverse trigger through the Can-Bus. To my knowledge, Jeeps have not aquired the system yet. So that radio you have has nothing to tell it to turn on. You have an accessory wire in the jeep, but since the Magnum used Can-Bus to turn the radio on, that wire does nothing when it reaches the radio. Basically, that radio will NOT turn on unless it is in a vehicle with a Can-Bus system.
Newer GM's have the same system essentially. With those, unless you use a special adapter, you can't even check diagnostics codes if the radio isn't plugged in. Everything loops through the radio. It's crazy.
It's a data system in some newer Chryslers that loops through the vehicle to the computer and tells it various things. In the Magnum's case, there is no accessory wire behind the radio to turn the radio on when you turn the key, the vehicles computer tells it to turn on via data sent through the Can-Bus system. In vehicles with Navigation, the Can-Bus system also supplies the Speed pulse, and reverse trigger through the Can-Bus. To my knowledge, Jeeps have not aquired the system yet. So that radio you have has nothing to tell it to turn on. You have an accessory wire in the jeep, but since the Magnum used Can-Bus to turn the radio on, that wire does nothing when it reaches the radio. Basically, that radio will NOT turn on unless it is in a vehicle with a Can-Bus system.
Newer GM's have the same system essentially. With those, unless you use a special adapter, you can't even check diagnostics codes if the radio isn't plugged in. Everything loops through the radio. It's crazy.
its hard to tell..
sometimes the wire harness is wired difrent..