Now that you fixed your speedo rattle, you are likely to hear some of the other rattles and knocks that were being drowned out before by the louder & more persistent speedo rattle noises that you just fixed.

====================

There is a headlight rattle -- take the two screws off on the bottom of the headlight and take the ring assembly off the hollow housing.  First, make sure all your loose wires, guts and connectors are being held down correctly by the wire ties & such and are not kicking around loose.   Tuck them in nicely and tighten those wire ties down over them to hold them properly in place.

Any remaining headlight rattle most likely comes from the single steel hook on the top side of the ring assembly where it has made itself some vibratory clearance to the single ribbed boss on the top of the plastic hollow housing.  Apply a dab of red silicone gasket sealant to the sheet metal hook so when you put it together it makes a silicone rubber buffered seal to the ribbed plastic boss.   You will be able to take this apart later, just go gently when you go about doing it as that piece of plastic is worth WAY TOO MUCH MONEY -- so please don't force it and break it.   The silicone will let go first, be patient.

====================

if you have a windshield  the headlight rattles more.  I   took my headlight out and  put some foam  rubber behind it and  now the  wires  don't bang against the  housing causing the rattle