2000 land rover discover II interior lights dont work at all!!!?

Ok, so my genius self tryed to jump the car with a golf cart. DONT DO THAT. the golf cart was 6v car was 12v. so anyway i jumped it and it sparked like a mf, but started. exept to find out that the radio, ac, and dome lights, and other lights inside do not work at all. the transmission controller under the seat was blown and the amp above it was smoking. soooo i replaced both and now the works fine and all of the electrical works fine. exept the radio and ac and dome lights. someone please help me for the love of god. i checked every fuse in the mf and cant seem to find one thats blown. even used a fuse tester. also is there a way to check the big fuses like the ones in the engine??? please help. thanks.