thank for you comment matey, as for the choice of PXA-H701 and RUX-C701, i belive you are right with the IVA-D300 can be used to control the PXA-H701, but because im using a double din facia on my Lexus, i choose to use the RUX-C701 too, as it also look pretty cool together with the IVA-D300...