ok, i can possible shed some light to this, i went down and had a chat to two gentlemen, one was a car inspector at the ipswich QLD transport dept, and armed with a copy of the (OPTRANS99MGNTACT) the transport act ( all 360 pages ) we went throught the allowable vehicle mods, the second gentlemen was a senior sargent at the roma street cop shop in brissy. now, i have issues with my plates, there personalised and my VNs stock light is ****, i constructed a carbon fibre housing and put a neon in it and my whole boot lights up, this is legal cause you can have any light illuminating ya boot by reflection,,,, just dont make the light be seen! ie the housing... undercar neons are illegal to be used, even in carparks, 3 points $240 fine, you CAN HAVE THEM FITTED A-OK!!! JUST DONT SHOW THEM OFF ON THE ROADS!
under law any light may be used to light the interior of a vehicle, provided it doesnt create a huge glow or windscreen glare for the driver, so you can have ya neons inside, i have 4 and the inspector had a look and said i did a good job at making them nice and hidden, up under the guards and seats. they glow on the floor but not the WS and REAR WS.
my DVD is technically illegal because i can see the screen, but they let it slid, some cops wont. if you are single and hoonin around theyll ping ya, but if you have the kids in back and you on a road trip, they let it go. usuing cieling mount DVD is not reccomended as drivers behind you may see it, hence illegal.
parkers and headlights must be white light only, however use of bulbs with higher blue frequencies is allowed, but dont go usuin blue LEDs,
NOS is illegal in all states of australia, EVEN HAVING THE EQUIPMENT IS ILLEGAL, if you have an empty bottle in the boot, not even wired up or lines connected, its illegal.
any questions,
with the general idea is you can have it, just dont openly use it!
Except for NOS