Originally Posted by Thunder38843
I recently had this same problem. I installed a new stereo and grounded it to the ground wire on the original wiring harness. BIG NO NO! After I did that and got the stereo playing great, I had no tail lights. Came in the house and googled it and foundout that you can't do that on a Dodge. Ground wire has to be attached to the chassis. After rewiring as the website explained, I had tail lights again. Weird, but true.
I'm glad I read this since I'm planning on changing out the stereo.