look on your amp
it should have 3 slots
one for power or (+)
one for the ground or (-)
and one that says rem. or remote
this is just a 14 or 16 gage wire the runs from the amp to something that turn on and off with the key
most of the time there is a blue wire on the back of your radio that will do this and it to is labeled remote
remember blue with white strip wire coming from the back of your radio to your amp and the terrmanal that say rem
thats it dude