Fibonachu & JonG: Thanks for the info. I looked at both systems and the IP-9100 offers a/c, heat and defrost for $1095 US while the Cap-300T is a/c only for $1070 US......is this correct? Am I missing something as to why the IP-9100 offers way more for only $25 more? Are either of these "complete" systems in that there would be nothing else I need to purchase to have a/c in mytruck? i.e. Do I need to buy a special radiator or fan for the 350 Regis engine? Have an awesome day!