need some help with some wiring

[JAWSTRX!]

i just bought some electric mirrors for my TRX. i think their from a 90 to 93 bluebird and im not shaw if they need a relay or anything for them to run. im planing to run some wires from the battery to the switch and then to the mirrors can i do that or not?
Thanks Anthony

[Budgie]

wire them to 12v after the ignition inside the car, use a factory switch. No need to wire them to the battery directly!

[JAWSTRX!]

were abouts in the car can i hook it to could i hook it up to the accesories 12v. i have the switch that came out of the car i took them off so i was going to use that.

[Stalker13652]

if you can find out what fuse they use in the original car wire them in behind the fuse box after a fuse of the same rating  and if your worrying about blowing the switch/mirrors you can always put in another fuse

to find out which side is after the fuse just remove the fuse and use a test light that will tell you which direction the current flows through them