Hey all i was just perusing the assortment of usual stuff on eBay, kinda came across these http://www.ebay.com.au/itm/OBDMATE-OM500-JOBD-OBDII-EOBD-Car-Diagnostic-Scan-Tool-OBD2-Code-Reader-/291205296575?pt=AU_Car_Parts_Accessories&hash=item43cd3031bf I'm curious if anyone knows a) If they are any good B) If they will work on my car? Plus any other opinions and advice.