Well I took the risk and purchased the 530/430 and 750/650 units while still available.

After a fair amount of work got a 530 working in a RealAir Legacy.

Installed the Gtn and of course failed with the TDS MSFS trainer present.

Rest of install seemed to go ok and in FSX/P3D the module requires activation during startup of those sims.

Can select the GNS in RealAir/A2A planes after adding '1's to various config.ini files.

Cannot do same with the GTn series. No sign of them.

Read the manual about dual install but it assumes RXP is latest trainer when clearly the TDS pro setup with latest navdata from Navigraph is way more modern.

A lot of info about removing/moving other trainers in manual but I;m not doing that.

Can I point the RXP to use TDS trainer or have I basically wasted my money on the Gtns?

Open the file ”My Documents\Reality XP\GTN Simulation\FltSim\RealityXP.GTN.ini”

NO such ini files exist. Everything else seems present in the directories. I guess it copies this default file to addon planes as it has worked with the GNS that way.

Been reading thru forums someone said the dual install worked ok now but maybe they installed the RXP first?

I'm a tech guy but RETIRED so really don't want to do a lot of windows registry work with this product. Plug and play or throw away is my feeling right now. Just want to fly like I used to when everything was detected in the old days.

Absolutely do not want to mess with the fantastic TDS product in MSFS. 

Any help or links appreciated, a word from the dev would help btw it's been too quiet.

2 hours ago, sloppysmusic said:

Open the file ”My Documents\Reality XP\GTN Simulation\FltSim\RealityXP.GTN.ini”

NO such ini files exist. Everything else seems present in the directories. I guess it copies this default file to addon planes as it has worked with the GNS that way.

Update:

On loading a plane and selecting RXP GTN config from menu the app is there. It creates the first ini above in default directory AFTER adding a panel to a plane. The GTN has no database or data at all though as not linked to trainer. 

So I just have to get it to work with the current trainer install as I'm not messing with that.