Which fuse to piggyback please!

[vstromer650]

Hi all, I have a 2011 vrs diesel estate and I am going to fit a new pioneer head unit, but I need a switched live. Now my plan was to use the front socket to piggyback off until I noticed that it appears to be live all the time, so now I am thinking to use the rear wiper to piggyback off, can anyone give any advice if this is a good idea or come up with a better one please. Thank you all!

[dilksie]

I use the rear wiper fuse to piggy back off for my dash cam so no reason why it wouldn't work for your radio