ok pretty much..when my car is cold the speedometer doesnt work..but once the car warms up...speedometer works like a champ...now when i put the car in reverse both my mirrors dont go down...plz help..im assuming its the wiring harness..has anyone ever had this problem?

 

Both mirrors DON'T go down. Only the passenger side goes down (tilts) when in reverse and the mirror switch is in the middle. If the passenger side goes down, then theres no problem. Hope that cleared a few things

Sorry about can't chime in on the speedometer

 

ooOO..well that makes sense thanks alots