I have a 07 dyna wide glide and i purchased what I believe to be a tank off a 08 street bob, everything worked except the top plate on the tank. I bought the correct one but now have to find a dash that will work on the tank and with my wiring. So my dyna came with a 5" speedo with the key and all in the dash, will a dash with the smaller ( 3.5 or 4" i think) speedo and key switch have the same plug ins? Any help would be appreciated thanks