Vehicle Sound deadening

Add butyl mats and closed cell foam to remove sounds from the inside of the doors 

Remove headliner and all pillar trim pieces to add felt tape to all plastic on plastic/metal parts that make creaks/rattles and add a closed cell foam and butyl tape 

Add butyl tape, closed cell foam & 3m thinsulate to the inside upper and lower door panel parts to reduce any noise that makes it inside

Quiet down the noise coming from the HVAC system through the dash by putting 3m thinsulate, closed cell foam, & more under the inside dash area and on the outside around the heat pump and under the dash on the outside.  Optional is covering the dash leather in foam backed suede to reduce more sound

The plastic on plastic around the center console makes a lot of creaks, especially when you put items on the storage area and they fly around and hit the plastic, I lay foam back suede to reduce the sound and put felt tape around the center console panels to reduce the creaks and rattles 

The cybertrucks plastic steering column is the most creaky part of the entire interior, you can put felt tape around it but it doesn't fully stop it, the best thing I have found is to fully remove it and flock it to remove the creaks 

Add 3 in one sound deadening material to the wheel liners and the trucks casting 

Add butyl tape and foam to the bed panel above the air compressor and around it to reduce the sound 

The seat back will often creak from the lumbar support rods and it needs felt tape to stop it, the seat cushion can also sometimes rub on the center console and to fix that the seat and the center console positions need to be adjusted