Very true point on the standard head unit, take a cd along to test it all out, mine is a bit funny at times but when i first got it wouldnt work unless i turned the volume knob whilst i put the cd in! Mind you in most cases and like mine all that woudl need to happen is a laser clean...
Ill be putting a single DIN headunit in shortly, so then I can get aus radio stations as well
If your looking in Brisbane call the following guy to inspect a car for you, he charged $125 for my stagea and did an awesome full inspection, better then ive seen from racq and the alike.. His name is Michael from Automotive Vehicle Inspectors or something like that, they do a lot of inspections for fleet cars etc - 0418 729425.. Anyone in QLD write down this number, it will come handy for you
Also be certain to checkout AJM Motorsport if your in brisbane, I bought mine from there at a great price and great people to deal with.