I replaced my regular telescoping mirrors with the turn signals ones. I did have to rewire. I provided detail instructions to this forumn on how to do it.

If you didn't have the turn signal on the mirrors you have now, you will need to run wire to your steering column....

 

I cant locate the instructions. can you email them to me or the link thank you. MR.RIOS702@GMAIL.COM
And just to make sure i have a 2001 f250 will the covers with the lights fit from a 2003-2004? i dont have problem wiring just need to make sure they will fit. i have the telescopic mirrors now.

 

They don't actually, been down this road myself...

Check your local dealer and check ebay, they're you're best bet unless you can find someone upgrading to 2008+ tow mirrors.