Toyota UK have announced details of the programme to allow the upgrade of existing MM17 Audio units in 2019 Corolla & 2019 Rav4. A retro fit kit will be available via your local Toyota dealer starting May 2020 and will available to install on all 2019 Corolla Grades and 2019 Rav4 with the exception of the ICON grade, there is no solution available for 2019 Rav4 Icon, 2019 Prius nor 2019 Camry. Upgrade will cost £120 for Corolla & £150 for Rav4 there will be a reduced cost offer