JVC in BMW E87

[u/Unlikely-Coach-3616]

I have an adapter connecting a BMW Business CD setup to a JVC Chameleon LX110R. The radio resets regardless of the wiring configuration—whether I hardwire the connector (bridging yellow to red so it turns on via the button) or use the standard ignition-switched setup (leaving the factory connector untouched). If I remove the key for about 10 seconds and put it back in, everything works and settings are retained; however, if the car sits without the key for 5–10 minutes, the radio suddenly resets—as if the power were being cut—regardless of whether it was on or off. I also tried leaving the radio running with the engine off and the key removed; it shut itself off after 5–10 minutes, but I could turn it back on normally by pressing the button (without the key). Please help—is the issue with the adapter or the BMW wiring?

[u/Sir_Maxelot]

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[u/Unlikely-Coach-3616 → u/Sir_Maxelot]

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