OR...if your Scotch like me it depends on whether you want to pay 400-500 for $165 worth of wire and fuse block.
(GASP!!!) $165! You must have went for the snazzy stuff!

I think Ive spent about $200 now on wiring (8-14 gauge as needed), connectors, heat shrink tubing, etc... Its also given me more then enough to fully complete 2 trucks and easily enough to do another, maybe 2. It takes a little longer but if your patient its fun.
But Im Norwegian so maybe thats the difference.

Although my square head dont fit under the dash so well sometimes...