- Joined
- May 17, 2023
- Messages
- 50
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- Age
- 58
- Model
- Express 265
I am installing new Garmin 1243XSV and 743 MFD’s, GMR 18 Radar Dome, GTU56 Transducer, GXM 54 sat radio, Fusion Apollo amp. I have read about the backbone connections, but the trans and radar plug directly into the 1243 and not the backbone. the 1243 does not appear to see the amp or xm sat unit, but does see the trans and radar (listing) in the connected devices. I have not linked the 743 to the 1243 yet. Any feedback on the correct/incorrect connections would be appreciated!