- There will be more than a "few"...I'm sure there are a few connectors that might need to be swapped also
The daytona uses a bulkhead connector on the firewall, while the shadow's harness passes right through the firewall and does not use a bulkhead. You will have to remove every single wire from the daytona bulkhead connector and splice it into the csx's wiring loom right before where the wires go through the firewall. Since you're talking about a numbered car here, you might want to try and find an 88/89 shadow harness and use that instead of the daytona harness. The csx harness is one off modified by shelby, so instead of cutting into it and destroying it, you would have a much easier time just swapping another shadow harness in, and saving the stock csx harness for later restoration or selling to another member who needs one.