Can anyone advise me if there is a permanently live fuse (ie a fuse that is still live when starting the car) on a 2015 Citigo.

I originally wired my Android Carplay unit into the fuse-box in the drivers footwell. This was piggybacked onto a fuse that was only live when the ignition was on.

I then wanted to listen to the radio when I was just sat in the car without the ignition on.

I rewired it into what was supposed to be a permanently live fuse (No3 - ie third in from the right) in the fuse-box at the end of the dashboard on the passenger side but the Carplay unit reboots itself everytime the car is started.

However the wiring diagram in the owners manual does correspond with the actual fuses in my car.

Before I wire it again, this time directly to the battery via an in line fuse, does anyone know if there is a permanent fuse that is not temporarily disabled when starting the car.

All the fuses in that fusebox are permanently live except no.4 (the left one of the two 7.5 amp ones in your photo).

If something piggybacked off one of the others is glitching at start-up, it must be (over)sensitive to the inevitable voltage drop that occurs when the starter motor takes its juice.

See if there is a setting in the unit to not care quite so much about voltage level.

Edited 28 September, 202528 Sep by Breezy_Pete

^^^ This, or your battery voltage is dropping too low because the battery is starting to fail.

Thanks for your replies. It's certainly not the battery as it is less than 3 months old, plus I regularly charge all my car batteries.

Unfortunately there is no setting in the CarPlay unit to adjust the sensitivity of any drop in Voltage when starting. It is just a cheap Chinese unit but works fine mostly of the time.

I had not considered it being sensitive to a voltage drop but I will measure the voltage drop at that fuse. Thanks again.

The issue is likely to be the voltage drop on the whole system when the starter motor draws several hundred Amps to crank the engine.