www.autoxpresstech.com I sent it in because the roll bar and top didn't seem to work. I got it back today and the roll bar works. the top didn't. However, now I don't know if there was really a problem with the top portion of the module or not. When I tested the top before I had the car idling. A no no with the hard top on. Engine must not be running. I should remember that because I take the top off every year. Anyway they did fix the roll bar problem for sure and cost me $240. so if you have a problem with your module you have another place to send yours. It sure helps to have spare working module to test it first and to use until yours gets back. then change them out on return to make sure it's fixed. as I've said before, the r129 is sure a wonderful car, a work of art that needs your financial support.