1998 Regal 402 Commodore Wiring Diagram

[WTCorley]

I have already installed a larger Garmin MFD, last weekend I installed the transducer, ran the cable in the engine room, but I’m having a hard time finding how to get the cable to the MFD from the engine room. Any one have a wiring diagram and or know the best route to take? Any help would be greatly appreciated. I have gone in under the bar and can get the cable to there, but haven’t been able to find a clear path from there to the helm…