LED Strip Mod Fail

[AirForceAngler]

Well, as most may know, the lights in the bed of the truck are rather weak, especially if you have a tonneau cover on.  So, I bought 2 60" strips of white LED lights to go under the tonneau brackets and run the length of the bed.  I tapped into the wiring for the stock bed lights.  Once I got one side wired and installed it tested and worked great but when I installed the other side and turned them on, all of the bed lights flashed twice and shut off.  Just the ones in the bed, the ones on the back of the cab stayed on.  I guess I was drawing too much current and the BUS system shut it down?  Anyone have any ideas?  The strip tested out fine on its own.  

[GETGONE]

Yeah, too much draw will cause them to do that. I ran into that on mine. I added small cube lights on my trailer hitch. I have the multiflex tailgate and it was fine with the stock lights but I upgraded them to brighter ones with more LEDs and it caused the same 2 blink then nothing result. I had to wire up a relay and tap the 12V+ from the trailer wiring harness to get power from. I put diodes on the reverse light trigger and the cargo light trigger into the relay so current can't back flow into the circuits.