security system/electrical problem
 

having an issue with my ride. my lights turn on and off by themselves. sometimes they flicker like the alarm is going off just with no sound. this kills the battery. when i jump it the in dash screen says to check the security system. after 10 minutes of driving down the road i do a system check and it says that the security system is fine along with the charging system. i changed out the rear panel lights with those clear euro covers and red led lights. a day after that is when i started happing. is there a ground back there that i missed? what could have happened to make it go all loopy? is there a way to check for messed up wiring?

I would go over ever thing to make sure everything is connected Properly

there is no ground back there?