Humminbird System Upgrade HELP

[JoeQ]

I am about to upgrade my Humminbird system/network and would greatly appreciate some direction.

WHAT I CURRENTLY HAVE INSTALLED
Helix 7 CHIRP SI GPS G2N with transom mounted XNT-9-SI-180-T transducer (in-dash console mounted).
Helix 10 CHIRP GPS G2N connected to Ultrex w/ built in 2D sonar transducer (bow mounted).
Both Helix 7 and Helix 10 are networked via AS-ETH-5PXG.

WHAT I WANT TO INSTALL
Solix 12 CHIRP MEGA SI GPS with XM-14-20-MSI-T transducer (installed next to console).
AS-GPS-HS External GPS receiver with built in heading sensor (installed aound transom).

WHAT I HAVE TO WORK WITH
Xpress X21 Aluminum Boat
Atlas 10" Hydraulic Jack PLate
Spare XNT-9-20-T transducer

THE GOAL
Use the Solix 12 primarily for 2D, DI and SI.
Use the Helix 7 primarily for navigation.
Helix 10 will continue doing what it's doing on the bow.
Have the AS-GPS-HS provide GPS positioning for the Helix 7 and Solix 12 and heading information to the Helix 10, Helix 7 and Solix 12.

WHAT I ALREADY KNOW
The MEGA transducer for the Solix 12 will need to be mounted to the bottom of the jack plate, starboard side.
The XNT-9-SI-T transducer will need to be removed from it's current transom mounted location.

WHAT I DON'T KNOW (Need Help Here)
Will the Helix 7 be able to pull any information from the Solix's MEGA transducer? If so, what information?
Should I re-mount the Helix 7's XNT-9-SI-180-T transducer on the bottom of the jack plate, port side, next to the MEGA transducer?
Should I give up on the SI and DI capabilities of the Helix 7, completely ditch it's XNT-9-SI-180-T transducer and install the spare XNT-9-20-T transducer so I can have high speed depth readings?
If I introduce the AS-GPS-HS receiver and heading sensor to the network via the Helix 7, will the Solix 12 be able to access the GPS and heading information?

I understand that I may lose some capabilities because Humminbird in not a true, across the board, plug-and-play system. However, I don't want this to become more of a "Contraption" than it needs to be. Also, I don't want to lose any functionality or performance of the Solix in order to gain functionality on the Helix 7.

Any and all help is greatly appreciated.

[Wayne P.]

WHAT I DON'T KNOW (Need Help Here)
Will the Helix 7 be able to pull any information from the Solix's MEGA transducer? If so, what information? Waypoints only

Should I re-mount the Helix 7's XNT-9-SI-180-T transducer on the bottom of the jack plate, port side, next to the MEGA transducer? No, for Charts you need no transducer connected, turn Sonar OFF

Should I give up on the SI and DI capabilities of the Helix 7, completely ditch it's XNT-9-SI-180-T transducer and install the spare XNT-9-20-T transducer so I can have high speed depth readings? Yes, would need the AD 1429 to connect to the SOLIX Y cable

If I introduce the AS-GPS-HS receiver and heading sensor to the network via the Helix 7, will the Solix 12 be able to access the GPS and heading information?
No

I understand that I may lose some capabilities because Humminbird in not a true, across the board, plug-and-play system. However, I don't want this to become more of a "Contraption" than it needs to be. Also, I don't want to lose any functionality or performance of the Solix in order to gain functionality on the Helix 7. The SOLIX and Helix have two different operating systems

[JoeQ]

Wayne, thanks for your help. One thing I'm not completely clear on...

"Should I give up on the SI and DI capabilities of the Helix 7, completely ditch it's XNT-9-SI-180-T transducer and install the spare XNT-9-20-T transducer so I can have high speed depth readings? Yes, would need the AD 1429 to connect to the SOLIX Y cable"

Are you saying that the Helix 7 would not be connected to any transducer and that the Solix would be connected to the MEGA transducer and the XNT-9-20-T transducer for high speed readings?

[Wayne P.]

Wayne, thanks for your help. One thing I'm not completely clear on...

"Should I give up on the SI and DI capabilities of the Helix 7, completely ditch it's XNT-9-SI-180-T transducer and install the spare XNT-9-20-T transducer so I can have high speed depth readings? Yes, would need the AD 1429 to connect to the SOLIX Y cable"

Are you saying that the Helix 7 would not be connected to any transducer and that the Solix would be connected to the MEGA transducer and the XNT-9-20-T transducer for high speed readings?

Yes, need the SM SIDBY cable for the two transducer connection:

https://www.humminbird.com/Products/SM-SIDBY/


You can get sonar data via Ethernet from the Helix 10 if you want.