I am new and am wondering can the AVIC-D3 be reset to factory before any installation processes. I purchased a vehicle which has it installed. CD's play, radio plays, nothing else. I received no DVD's, no booklets (found and downloaded instruction/installation manuals) I purchased the CNDV-100 DVD's, but don't know whether to upgrade/update the unit or not. Was told that all I needed was the above DVD's and the unit would do the rest. I hope I was told correct. Any other information/suggestions would be appreciated. Thanks;

wondering can the AVIC-D3 be reset to factory before any installation processes.

but if it is installed already, why not just reset it while it is in the car?

get the right disc and you should be good to go (as long as there is not any other problems with the radio as you were told)