Not much to show this week, it was mostly all wire related. I have the GMA245R and the both GTR20s wired up. After some research I also decided to hook PFD 1 up to Audio 2 and the Fail safe Audio and MFD1 to alert 1 in the GMA 245. I haven't seen others do this so I hope I am not shooting myself in the foot. Also after hooking up the COAX from comm 1 the pin was grounding out to the shielding. Having thought I messed up the connection I cut it off and was going to redo it. But after taking the connector off the coax was still grounded to shield. I know I tested it before I connected up Comm 1 antenna. But oh well time to disconnect comm 1 antenna and ohms check it. The problem being when I installed it the rear skin was partially off and I no longer have access to that antenna. So, I made an access hole, picture below, in the top of the baggage extension. It came out looking pretty good. I stole the design from the bottom of the plane by the GMU 11. I still need to make the access cover and will rivet in some nut plates. With comm 1 coax disconnected from the antenna I discovered that the coax pin connects to ground or shield thru the antenna. I didn't realize that before and everything is fine. So turns out I didn't mess up the connector, didn't need to cut off the connector, and I didn't need to make the access hole.
Lastly, I have been looking for an affordable dome light for the rear cabin. I think I found what I am going to stick with (
https://www.amazon.com/dp/B012ZOI3ZW?ref=ppx_yo2ov_dt_b_product_details&th=1) but I am still not 100% sure what I will use for a switch.