Hi! Was looking at your thread on installing a remote start on a Chevy canyon/Colorado. We bought an Avital 4105Lfor my husbands 2008 Colorado. He has installed remotes in the past that were a lot easier but this has little instruction. My question is about a bypass module. Do we need one? There isn’t an alarm system on the truck and no automatic door locks. It was an used work truck. He’s a little hesitant just because there is not a lot of instruction. Any other suggestions? Thanks! Btw your description was well written and detailed!