Trailer hitch install gone wrong?

So i have a 2008 honda crv. I had a trailer hitch installed at the place i rented my uhaul before i moved to florida 5 months ago. Now i'm having electrical problems and 1000 dollars later in repairs. The honda dealership has come to the conclusion that the trailer install is the cause and is removing the whole tow package which is another 200. Is there anything i can do about the last shop messing my car up?

No. Sounds like this dealer is soaking you, though. The electrical connection for the trailer could be removed in a few minutes. The hitch is not the problem.

You don't say what your electrical problems are. The hitch itself is not the problem. I've installed a hitch on my own vehicle. I had one electrical problem. I bought a cheap connector from a big box store - it was defective - kept blowing a fuse. Bought a high quality replacement. Been working fine ever since. So, from my perspective, it's almost impossible to wire a trailer light cable and cause $1000 damage. You would have a major complaint against the Honda dealership.