The remote door locking on my Landcruiser stopped working, so I contacted Air and Sound who said they can fix it. After a couple of hours they contacted me and said the unit was faulty and needed to be replaced. The gave me a price, and thinking they were the experts, said OK. They called me about three hours later and said finished. I paid and went to my vehicle, and tried my new system. The doors unlocked, but no flashing of the indicators to tell me. I went back into the workshop to tell them, but the guy behind the desk said the unit they had fitted didn't have the flashing lights. I said no good , you need to see that the doors had locked or unlocked. Another guy from Air and sound happened to hear me arguing, and said he would fix it, but needed a couple of more hours. I said OK, cause I wasn't really happy with it as it was. Ended up flashing , but the dash facial was broken, and when I complained he said it was already broken, not their fault.