First post that my be useful to others so go easy on me if it’s in the wrong place!!
As I said in the into I bought a non starting Rx8 last week and have solved THAT issue, it’s not the last issue tho, as expected.
Nothing happening when the key is turned to the final stage that should send the current to the starter. I had ignition lights at stage 1/2 of the key, bizarrely all electrics, side lights power window on the passenger side worked , the driver side were all dead.
clearly an electrical issue!
The cause, the main 120A fuse located “inside the guts” of the main fuse box in the engine bay was blown. Temp fix with some electrical wire as a fuse. All electrical bits back working and she starts and runs!!
Now to find out why it blew in the first place, I suspect it’s the rad fans. I ran the car for 10 mins and it boiled the damn thing. Fans never cut in.
Hope that helps someone else with a totally dead car!