ok did some more experimenting.

its definitely related to the LED bulbs, which is strange though, I dont remember it happening right away.

I replaced the LED tail light bulbs with regular 1157s and it went away completely. Then I tried just one LED bulb and one regular 1157. Problem still gone. Switched LED bulbs, still gone. Then did the same procedure again, but with the regular 1157 in the other housing. Same results

The only time it happens is if I have two LED bulbs in the tail lights. I'm thinking I'll try a load resistor like on turn signals and see if that makes a difference. I'm thinking that the LEDs just may not put out enough resistance (so grounding through the bulbs instead of frame) I'll try that, although I'm not real confident. I'm thinking the current will just go through the bulb and skip the resistor (path of least resistance)

at least I can fix it if i want. but for now the LEDs stay, they just look too cool. If I cant figure out how to make it work I'll have to go back to regular 1157s though