I got a Prodigy controller from Camping World they had the plug and play harness for our trucks in stock. It made install very easy. I have wired others in the past my self, it isn't too difficult. Just take your time and make sure of each connection.

 

prodigy is the best to me.. i have used many but the prodigy wins all the way around..

 

the connector is blue? any1 have a pic of its location?