Pathetic Customer Service and Poor Quality Product

I recently had a multimedia unit installed in my car. The unit was a JVC KWV330BT touch screen unit. The unit was installed poorly, with unbearable noise through the speakers, even when the unit was turned off. I returned to the Rivonia branch 3 times for this to be fixed, the first time being turned away after phoning ahead and waiting 2 hours at the store on a Saturday. The noise is still there however it is better. The Unit is absolute Trash. There is a long list of issues with the system, ranging from poor compatibility, to glitches and noises during playback and trouble and delays when trying to connect. I have been told to update the Firmware, I have tried Multiple times, each time resulting in the unit crashing. When i took the car back for the 4th time, I was promised that a technician from JVC would assist me. I was assisted, after a long wait, by an in-store installer who found the same issues i had.... NO Solution. I was then told that they would replace the unit. That was more than 2 months ago. At a cost of R8000,00 and plenty of time and frustration, I am absolutely disgusted with the quality of the product and with the useless service i received. If it didn't require me to return to their store and deal with the manager once again, as well as risking them damaging my dash even further, I would opt for my original unit and they could throw this thing in the trash. My recommendation would be to steer clear of JVC and find anyone else to install.