Just so you know.
That's also the constant 12v+ for the radio (Orange/Black wire)
So if that fuse (Number 23: 15 amp) blows for any reason, your leds will go out as well.
Probably a good idea to whack a separate fuse in after you splice into that wire.
A 5 amp will be plenty.
Oh.....and don't forget to disconnect the batter, before you start.