Words cannot express the giddy smile on my face this evening. Bought this car for $2k, all of the warning lights on and spoiler stuck up, and a few other misc items...
Replaced the RCM today, it all works as it should!!!!
Had to get it in the highway to make sure

The wing deployed as it was supposed to, although it was was 9:30 and too dark to watch it happen. Guess I’ll have to do it again during the daylight.
Checked the low beams too, as they were pointed to the ground. One bulb was upside down, the other wasn’t secured by the clip. Got them sorted and can see the road ahead.
It was a good and productive late evening of tinkering.
This forum has been a wealth of knowledge. A huge thank you to contributors for the discussions and advise.
(Photo is from a couple days ago, the only one I have so far)