Transducer Extension Cables

What is the correct transducer extension cable for my Humminbird unit? 

APEX, HELIX, ONIX, SOLIX, MEGA 360

HELIX

• 720096-1 (EC M10)  - this HELIX extension cable is used to extend the transducer cable an additional 10 feet.  
• If you already own a EC W10 - While there may not be any major performance issues while using the existing, non-MEGA Imaging EC W10 cable.   (720003-1), which is an older version of the above cable there is a possibility of interference. The new cable includes additional shielding and twists to eliminate interference.  We highly recommend the EC M10 for all MEGA Side and Down Imaging transducers   
• 720096-2 (EC M30)  - this HELIX extension cable is used to extend the transducer cable an additional 30 feet. 
• If you already own a EC W30 - While there may not be any major performance issues while using the existing, non-MEGA Imaging EC W30 cable (720003-2), which is an older version of the above cable, there is a possibility of interference. The new cable includes additional shielding and twists to eliminate interference.  We highly recommend the EC M30 for all MEGA Side and Down Imaging transducers

APEX, XPLORE, SOLIX, ONIX and MEGA 360

• 720106-1 (EC M3 14W10) - this 10ft extension cable will work for all APEX, XPLORE, SOLIX, ONIX and MEGA 360 transducers. 
• 720106-2 (EC M3 14W30) - this 30ft extension cable will work for all APEX, XPLORE, SOLIX, ONIX and MEGA 360 transducers.