This page contains details of actual audio upgrades that FOUR MASTERs have carried out on specific car models. These are categorised as: Audio Joy, Audio Heaven and Audio Expert each one having it's own budget level associated with it. The eight boxes below feature the current top seven brands that customers bring to us for better audio plus "others". Select the brand of your car and check a Driving Sounds Magazine review of a FOUR MASTER installed system. If your car is not listed don't worry, we are confident that we can tailor a solution to meet your specific needs. Simply fill in the detail in the "Request a customised quotation" box and we will contact you.