normally only 1 audio one is hooked up.. a car only needs one... if i had my car i could check if mine has a fuse in it.. coz i know some retards just put fuses in for no reason (because the fuse cover said it needs a 20A fuse they put 1 in) because they think it needs it... so it blowing a constant would be normal.. but blowing a illumination is probably coz u touched the constant with the illumination..
nope there was no touching wires i am 1000% sure of it no that is not a mistake that is 1000%, could be for optional upgrade i suppose
i dont know... could be anything... it has never happened to me before so id say let it go.. if it blows agen than i dont know bring it to an auto elec coz it might be something loose or somethin.. seriously it could be anything..