Thread: Where Do I Find My Key/Ignition Power Wire To Hook My Amp Up To?

Originally Posted by JCG's-GTP

Run it straight to the fuse box off a fuse that comes on only when the cars on I.E. power antena , windows, sun roof ect...

This is what i did, and it works great, but if you do it this way add a toggle switch in the line also. This way anytime you turn the radio off for some reason, you can also turn off the amp. If i have the radio off and forget to turn the amp off too, there is a humming noise that comes through the subs. Adding the switch eliminates that.

Originally Posted by 99prixgt

or just tap the remote into the radio fuse, it will eliminate the need for a switch.

NO, it does not. The Radio power (turn on) fuse is just a branch of the ignition switch. In an aftermarket head unit, turning it off turns off power to the amp. When you turn your radio off, the radio power fuse is still active.