I upgraded my rig with factory remote start for $85 and it was easy. There is a thread on this already that someone posted with the "how to" and where to get what you need. I got mine on eBay from a Doug guy. It was plug and play and even uses my factory key fob. Hit the lock three times, wait a few seconds and it starts.
Here it is, I found it.
4th Gen Remote start for under $100 - DODGE RAM FORUM - Dodge Truck Forums 4th Gen Remote start for under $100
I know this thread is for 4th gen trucks but I would write to the guy on eBay and ask him if he could flash the unit to your truck. He's a good communicator.
This is his eBay seller ID:
doug43235
This should be his seller link
Go to eBay.com and search this in the search bar:
seller:doug43235
His stuff should pop up.
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