I’m looking for an ECM wiring harness for an Indmar MEFI 5A (2007 Supra Launch 20 SSV Indmar assault 325). Does anyone know where I can get one? The closest I could find is linked below, but it is listed for a “Marine Power” engine. Are these harnesses universal for these GM type engines? Any help is appreciated!
https://marineenginedepot.com/wiring-harness-57-mefi-5a