Installing a dual amp system in my ride?? Maybe?

Installing an audio system in my car. I have an Alpine V MRP-F250, 50 W RMS output @ 2 ohms X 4 channels for mids and highs. For my Sub woofer I have a Kicker KX400.1 mono amp at 400 W RMS @ 2 ohms x 1 channel. Been looking for a dual install kit, but not sure what to look for? Seen some with Dist. blocks and power cable with 1 - 4 gauge input, 2 - 8 gauge output, but I think 8 gauge might over power the Alpine? Does it need to be fused? Can anyone help me get started? Thanks

http://www.crutchfield.com/S-vnh3geQOZMh/App/Product/Item/Main.aspx?i=575RFK4D

The kit should work pretty good with your setup!

But if it would make you feel better, you could switch out the unfused distribution block with a fused one and then just find the appropriate sized fuses for the amps.

Good Luck!