You should know whether you will need rgh 1 or rgh2 wiring for that dash.
That is If you had read anything in martinc's road map for noobs.
you should also know if you are wanting to use the demon for a glitched image with a retail image on the console for use on xbox live you need to update it to a split cb to get on live, then you are forced to use rgh2, or wait for the new phat hack.