Hi guys need help,the mrs plugged in anew stereo to find out if the old 1 was at fault or not and managed to blow a fuse!! no biggie but which fuse is it??

You don't mention what car you're referring to, but if it's the Stilo you've posted about previously, It should be F39 in the dashboard fuse box in front of the driver's right knee (for RHD cars).

In future, for Stilo related problems and info, please post in the Stilo section of the forum here:

https://www.fiatforum.com/stilo/