Hyundai Umhlanga & Designer Audio (Marriage of the Clowns)

H1 Bus purchased from Hyundai Umhlanga. They outsourced installation of Sat Nav system to 3rd party (Designer Audio). On installation, Designer Audio completely disconnects dashboard USB port and uses dashboard power supply instead of using a separate power supply. Wiring connection of system was pathetic. Led to autoelectrical issues from installation. Hyundai and Designer Audio constantly blame each other for the faults. 45,000 kms later they still havent resolved the issues!! Both Hyundai Umhlanga and Designer Audio are ***********, unprofessional and useless. Stay away from sales pitch lies and false promises! Think twice before dealing with either of these two “businesses”