Spyder actually does have an installation video for their headlights its just not for a dodge ram its for a chevy tahoe if i remember correctly. Funny thing is i just installed my own set of spyder headlights to my 07 yesterday. Its an incredibly easy process, the only complicated part of it is if you're installing an HID kit into them, but even then it's not that hard. What you need to purchase are quick connects or quick splice. You can find them at any automotive store.
here is a link to what they look like
and heres a pic on how they turned out on my ram
If you have any more questions let me know.