I have a 2008 Chevy Colorado. I bought it about a month ago. It drives great and didn’t really have any issues at first. But after the first week or so the battery died. We got it tested and put a new one in. It has continued to die several times since. For example me and my girlfriend’s family went to the beach. It sat with nothing on and nothing plugged up for 2 days and was dead. Tonight I was driving and all the gauges and dash lights went out along with my AC. After I got it parked and turned it off it wouldn’t crank again. Does anyone know what could be causing this? I have an after market radio but it was having this issue before I had it installed.