Alpine 9886 Question

[softroop]

I've installed an Alpine 9886 unit. Used the Metra 1787 harness. Everything works fine, except I cannot save settings. If I change the sound settings, time, date setup, etc, it works fine...until I pull the key out of the ignition. When I start up again all settings are back to default. This is a minor annoyance now, but I'd rather not have to reset the settings countless times a day. Thanks in advance for replies.

[JeTexas]

On radios there are two power cables, one that goes to always-on and one that goes to accessory power. It appears that you have them both connected to accessory power.

[pk2]

I know nothing about your Miata/alpine hack but car radios in general require two 12v leads. One “switched” that is, it powers the radio and turns off with the ignition The other “un-switched” does not go off with the ignition.

The one that stays on, always(with ignition off),, un-switched, keeps the memory of your radio powered to retain your settings.

It would seem you have both wired to switched terminals.

Regards, PK

[softroop]

Thanks for the reply. I was told my problem is the yellow and red wires are crossed. The constant wire on the Alpine is yellow, whereas its red on the Metra harness. I have it connected yellow to yellow/ red to red.

Thanks again

I know nothing about your Miata/alpine hack but car radios in general require two 12v leads. One “switched” that is, it powers the radio and turns off with the ignition The other “un-switched” does not go off with the ignition.

The one that stays on, always(with ignition off),, un-switched, keeps the memory of your radio powered to retain your settings.

It would seem you have both wired to switched terminals.

Regards, PK