; Holden Commodore (VT, VX) Original radio options - InCarTec

There are multiple original radio options in the Holden Commodore (VT, VX), which option is the original fitted system?

Commodore VT/VX Eurovox Standard Audio Commodore VT/VX Eurovox Standard Audio
Commodore VT/VX Maestro Series Audio Commodore VT/VX Maestro Series Audio