Originally Posted by mountainmandan
Well it depends if you want a double din or a regular old head unit. If you are going from factory to aftermarket than you will need the install kit, which is the plastic insert and the wiring harness. It is pretty simple just make sure you get the correct wiring harness and match the colors. If you are doing subs than make sure that you install the remote wire which is usually blue. I have a kenwood head unit that is great. Normally with audio equipment name brand is the way to go. More than likely they will last longer and work better.
hes talking about an engine head
OP: i would inspect it really close and take a straight edge with you to see if its warped or not..and if you see a lot of sludge walk away or if its warped or cracked