Aaron has been repairing automatic transmission since 1993 when he was 12 years old. Since then he has completed level 1&2 of production engineering while doing vocational training in years 11 and 12 of tertiary school.

Aaron is the son of Trevor Madex, whom along with Daryl Madex, the original founders of DTM Automatic Transmissions.

Aaron is an industry leader in automatic transmission diagnosis and repairs and is a board member of the 'Automotive Repairers Division' in the VACC.

Aaron is passionate on delivering the highest quality repairs and as such attends many annual training seminars as well as teaching here in Australia.