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It is becoming more and more likely I will need an avionics master relay for my 1988 "J". Mooney no longer supplies that part. Any suggestions on where to find one?

Maintenance lesson learned...Went to start the Eagle, flipped on the Master and everything powered up like normal. Then without warning, everything dropped off line and their was a loud clicking noise from behind the panel as the battery kept coming on and then dropping off line. Luckily the Eagle as two batteries and I switched from #2 to # 1 and every thing worked normally. Talked with the guys at Weber Mooney Service Center and they got me in right away. Diagnosed the problem as a bad #2 Battery relay. Overnighted the part from Mooney and the next day it was fixed. The only "bad" but not unexpected news is a relay from Mooney is the better part of 1 AMU. Anyway, if anyone else runs into a battery that jumps on and offline with a loud clicking noise, it's probably the relay.

A couple of months ago my 69 m20f landing gear failed to retract during takeoff at normal speed. As I continued the climb out I noticed as I got faster the landing gear would just randomly go up on its own once the aircraft hit the speed it liked. Over the course of the next month the speed required to retract got faster and faster until it just would not retract at all. I figured it was the airspeed safety switch since mine was still original 1968 and the problem seemed to be connected to the amount of speed the aircraft was traveling at. So I ordered the latest and greatest replacement from mooney. Installed it with no issues. Went flying today, and still no luck with getting the gear to retract after about 45 mins of flight time I was just flying along when out of the blue the gear retracted. So I tried to cycle the gear and it went down, went to put it back up and no luck. So the gear stayed down for the rest of the flight. I should point out I have never had any problems with the gear going down only going up. I was thinking it is maybe landing gear relay getting stuck. Anyone got any thoughts? Has anyone installed the mooney landing gear relay retrofit kit 940085-501. My relay is the original 1968 model so I can see how it could be bad. Any help would be appreciated.