It needs a fused connection off the ignition (stock set up) but it also needs a permanent power connection as well (the yellow wire on the new head unit power connection) You can hook it up off the clock (it's close enough) or run the wire from permanent power in the fuse block. I would have a tendency to have a fuse in the permanent power wire as well just in case. You have the original radio power plug in the loom so I'd just hook the power on from that to simplify the set up so you can find the fuse for it in the fuse block if it pops.