Just Bought 05 Denali

[kstevensii]

I wanted to know if any one had any upgrades that I could do to my 2003 yukon
Like an OME 2 way remote start and HID headlight upgrade for starters

 

[Barman84]

Here is a pic of her. Now for the other questions. There is a switch that is mounted on the dash that I have NO IDEA what it does. Who wants to guess? Here is the pic of it.

That switch is after market someone else installed... I would pull the dash and see if its hooked up to anything or not. And if so follow the wires to where. You said its an 03 right. Do you have a mechanical fan or electric fans on it?

I have seen some botched electric fan setups come through my uncles used lot that people did but not the right way.