I have a 95 325i with. Pioneer headunit. I bought the car from a previous owner and the radio was in the car already. Everytime the key is turned on then off then on the radio would reset and i would have to change the clock back and redo everything. Every single time i got in the car. My sister had a bimmer a few years bavk and she said the same thing happened to her you cant fix it. I think that is bullshit. Thee has to be a code or something to make the radio not reset. If it helps i have no am or fm radio. I think its the signal not to sure.
Check the permanent hot lead to the head unit to make sure it is not on a switched circuit.
Ok will do. Could there be any other reason why?
That is 99.9999% the correct answer.
Now what exactly do you mean by "switched circuit"?
Your headunit has a wire that connects to a switched power source ie ignition, and a wire connecting to constant power ie battery. I seem to remember some Pioneers have 2 constant power wires. If you don't have the constant wire connected then you lose all your setting when ignition is switched off.
Note: I assume the wires are red and orange. Check your owners manual to be sure.
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Pull the deck, swap red and yellow, as everyone else has said, that is 99.99% it
@rogan: they went IEC 20 years ago, no more orange constant
Apologies, we're a bit behind the times down here. Either that or early onset dementia.
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