hope someone can help

I was putting new radio in and blew a fuse that controls my heater fan, found which fuse it was after pulling every fuse ( no owners manual ) put back 30 amp like what was in it. Now when I crank my car, the low oil light blinks three times and low coolant blinks 2 times. The only thing I can think of is maybe put a fuse in the wrong place, the reason I say that I remember 2 or 3 slots had nothing in them, I had pulled out some got distracted with kids and forgot where I pulled fuse from. Anyone with ideas please send them and by the way I have aftermarket gauges ( oil and temp) have 60lbs oil pressure and let it run about 20 mins and temp got up around 175, run perfect.