I've hooked up my Coleman Road Trip XL (I believe that's the model) to the propane quick connect underneath my outdoor kitchen. It works great, and I like not having to carry around the 1lb throw-away tanks, even though I had been refilling them.
I followed a tutorial I found online somewhere, and bought the parts on Amazon to modify the existing propane plumbing on the grill. I had to disassemble the existing propane connection, remove the regulator, and reassemble it with the parts I bought. I saved everything in case I wanted to revert back to the 1 lb tanks, though I don't see any reason to do so.
I had to order these parts:
I believe you can also buy a ready-made kit to convert your grill, but It was cheaper to do it the way I did at the time.