I've been trying to find instructions for rermoving factory HU from 09 FIT sport w/o navi

 

This is about the best thread, although there are others too. You'll do everything up through step six.

I gave a fairly detailed account of where the press-fit tabs for the radio trim are located in post #5 here:

Note, the second thread above was for an earlier model car, but my description applies to the 09 non-nav stock radio.

 

Thanks, that was a good tutorial. I was able wire almost everything up and get the HU working. Now trying to connect the DVD lock out wire from HU, not sure where to go .

 

You didn't indicate what type of HU you have, but for many/most Pioneer units, you ground the parking brake wire from the HU rather than connecting it to the parking brake circuit. Generally, any metal structure nearby will do. Note: search online for specific instructions for your model rather than just winging it. I'm sure that somebody will have done this before if it's possible... Likely search terms are "parking brake bypass (your model/unit)".

For Pioneer units with a GPS, you have a few additional steps since it can detect that you are actually moving via the GPS: you often have to move a wire in the harness and ground it in addition to grounding the Pbrake wire, or you have to apply a software mod to the unit.

The avic411.com forum has instructions for Pioneer AVIC units.