no power, wiring new dash

Well I got rid of the stock gauges and installed autometers for everything. Now I don't have these three hooks, the multi plug in the back of gauges, the red power wire, and black ground which both hooked to the back of the stock dash. I thought I only powered the dash, not the whole car? Do I need to jump anything with the multi plug to get power to the fuse box? Some how the dash must send power the fuse box, which I have no power to. What do I need to do to get power back thru the system with out using the stock dash.