Peugeot 207 + Alpine UTE-93DAB – Loses Memory After Ignition Off

[Radaresat]

I bought an Alpine UTE-93DAB head unit and upgraded the car with an Alpine sound system. I’m using an ISO-to-Quadlock adapter, and the head unit itself works perfectly.

The problem is that when I switch the ignition off, the radio loses all of its memory. The settings, saved stations, etc. are reset.

On the power side of the Quadlock adapter, the yellow and red wires are connected together, while the black ground wire is separate. I modified the wiring and connected the yellow wire to a permanent 12 V source using the F8 fuse circuit. However, the red wire is still connected together with the yellow wire on the adapter side, so both are effectively receiving permanent 12 V.

Because of this, the head unit does not switch off automatically when I turn the ignition off. I have to switch it off manually using the power button. After I do that, the clock remains on the display and everything seems to work normally.

What is the correct way to wire the yellow permanent 12 V and red ACC/switched 12 V wires on a Peugeot 207 with an Alpine UTE-93DAB? Should the red wire be connected separately to an ignition-switched 12 V source? Could the fact that the red and yellow wires are connected together in the Quadlock adapter be causing the problem?

Has anyone installed a similar setup on a Peugeot 207, or does anyone have any advice or recommendations?

[mickthemaverick]

Have you asked Alpine support about this, they may be able to help: https://www.alpine.co.uk/support.html