Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
My name is***** am a Gold Certified Holden Technician.
I'll try to help you with your problem.
Do all the radio buttons on your steering wheel function correctly?
Is yours a in dash stacker 6 disc, or boot mounted stacker 10 disc?
It sounds like you have a low volts condition straight after start up, or whenever there is a quick demand (high beam, braking etc).
There are many faults with VZ/WL, so we need a TECH 2 to scan the vehicle for codes.
Your local Holden dealer will do this for you for a small charge, can you do this?
I would be more concerned of the ABS lamps than the radio at this point.
I know I would find your problem if I could see the car.
Yours is unusual, quite possibly low charging output of alternator or a poor ground that becomes hot.
I hope I was able to provide you with some guidance.