I currently have a 496 DTS Smartcraft setup and I'm changing over to 525efi's that have Smartcraft. I know right off I will need to change the DTS shifter assembly over to a mechanical setup and run cables for the throttles and drives. The smaller rectangular plug in the boat plugs directly up to the rectangular plug on the 525efi harness next to the round plug. There is no round harness plug in the boat, just the ractangular one. Is there anything else I need to be aware of or require specific attention on this swap? Thanks in advance for any info