GMC Truck Door

When I Start The Truck, The A/c Blows Good From The Dash Vents. And I Can Change It To The Floor Or To The Top Vents,etc. But After A While...

I Bought A Truck From A Friend That Was Losing It In Inpound.when I Went To Pick It Up At The Inpound Yard . We Unlocked It Turned It On...

I Bought Doors That Are Power Windows And Power Locks How Do I Wire Them Into The Convenience Fuse Block Under The Dash? I Put A Fuse In The...