did u have music playing then when u attached the remote switch??
and i take it u r amping up ur speakers, a big boost in power 2 them could have blown them???
how loud did they go, were u wiring up the speakers 2 the amp???
i always have things off when im wiring up, my amp sparks like a b**ch when im tightening the ground and power cables 2 it aswel so i usually take the inline fuse out of the power cable 2 make sure i dont blow anythin aswel
try above things first, could just b wires near power cable or wires not secure
.Dave.