I purchased a used Pioneer FH-P5000MP Double Din Head unit about a year ago to serve as the heart of my system. The unit arrived functional but far from well loved (face plate was all worn, bottons would stick, the main light was caked with grim, ect ). Well since I'm switching cars I decided to pull the radio and get to work on restoring/refurbing it.
As you can see it's got a few screws on the back that hold the heat sink on, you need to remove them first to make your life a whole lot easier when workking on the rest of the radio.
Once it's removed you just have to gentally lift up on the top cover panel to expose the cd mechanism.
(Look T that massive STK Pack, why do you even need an amp )
Next you have four screw holding the cd mechanism in place (two in the back and two in the front down at the bottom)
Then just gently lift and flip on it's side to remove the ribon cable tieing it to the main board and it's power lead. Becarefull ribon cables like to break at the mear thought of moving.