ok.. i was installing a wideband on the formula, and i was testing where to put the positive wire from the inside of the fuse box. so i found that the gauge fuse turns on when the key is turned on.. so i pulled out the fuse and i inserted the wire(+) in the fuse. the wideband turned on and off like it should, but then i left it on for about 30 sec and then i heard some clicking in the engine.. so i turned back the key, but i when to turn it back on, the gauges and light dont work like they supost to, fuel pump doesn't prime, and when i try to turn on the car, every electrical turns off and nothing happens, no cranking or anything. i think something is clicking under the dash by the glove box... i checked all the fuses and there are all good, i swicth the relays and it still does the same thing... please help!!!

what can it be???