How to convert to DIN1 head unit

WARNING: 

Before performing this modification:

1. Power on and test the unit first to ensure it is functioning correctly out of the box.

2. Document all existing connections — take clear photos or notes before any disassembly.

3. Always ground yourself and the unit to prevent static discharge (ESD) damage to sensitive electronic components.

4. Proceed only if you are confident in your technical ability. Improper handling can cause permanent damage

The below guide is showing a CC3

CC4 PRO looks like this, but the methodology is the same. TEST THE UNIT BEFORE DISASSEMBLY!