My current project is adding onboard air to my truck to run air tools. I didn't like the idea of adding a gas powered air compressor and mounting it somewhere on the service truck, I just don't have a lot of space and worry over theft. I looked into some 12v electric air compressors and wasn't happy with what was on market. Most of them have low CFMs and to run air tools I didn't want to have to wait too long to bring the PSI back up in the air tank. So I am in the process of adding a sanden air compressor (Typically made for air conditioning) along with 14 gallons of air tanks storage. I have been documenting it via youtube, this is part 1. Parts 2 and 3 are to follow after the holidays.