Where is switch for heated outside mirrors

[Dene2006]

Just wondering if somebody out there can tell me how the heated outside power adjustable mirrors are turned on? I just brought back a 2004 f/250 Lariat from Arizona and for the life of me can't figure out how to turn on the heat. There is a little wavey heat radiating symbol on both power mirrors so I imagine they have that option.
Thanks in advance!

[GregsSD]

There is no switch, they come on when the engine is running.

If you are having a problem with them not working, look in your owners manual for the fuse # and check to see if it is blown.

[Fantom]

They're always on when the ignition is on. I believe some people have traced the heat wire from the mirrors and put them on a switch

*edit*

HAHA, Greg beat me to it

[MikesF350ps]

Mine come on when I turn on the defrosters

[Dene2006]

Thanks Mike and to the others also. I don't have a rear defroster but you're correct because my Mazda3 mirror heat comes on when I turn on the rear defog.

[Galaxie]

Originally Posted by Dene2006

Thanks Mike and to the others also. I don't have a rear defroster but you're correct because my Mazda3 mirror heat comes on when I turn on the rear defog.

Yup, key on, mirror heat on. The excusions came on with the defrosters.

[Dene2006]

are they on a timer, (I would assume)?

[Galaxie]

Originally Posted by Dene2006

are they on a timer, (I would assume)?

no sir! people tend to pull the fuse in the summer. I always forget until I wash my truck with it running and see the dang water spots!

[Fantom]

Originally Posted by Galaxie

no sir! people tend to pull the fuse in the summer. I always forget until I wash my truck with it running and see the dang water spots!

I've never thought of doing that

[amdriven2liv]

My heated mirror switch is in the picture in my Sig. Second from right. Yes, mine's an 04 so I don't have upfitter switches, so, installed my own.