Do all OEM DSP radios/navs/headunits have the same plugs in the back? I have the old school Nav head unit like the one pictured here:



So if I wanted to install a dynavin/hualigan unit, I'd have to reloacte the whole thing to the trunk? There is no MID..... or at least I'd guess it's built in... can I assume the plugs in the back are the same as the other units?