I've been having some electrical issues as of late, could be due to a number of reasons...heat? old battery? Car is upset I haven't been driving it on weekends?

2004 Crossfire coupe, base model, had the original battery up until a few weeks ago. A few instances where the weather was hot and the car was in the sun, I would find the engine wouldn't turn over. Took the battery in and found it was bad, replaced it with a new one (Super Start Platinum AGM Battery 48PLT).

Then comes along a big pothole on the Interstate and all of a sudden the 6 indicator lights come on (BAS ESB, BRAKE, ABS, CHECK ENGINE, break wear indicator, and general lighting [This would be on if my lights were on]), my speedometer goes down to zero, the odometer stops logging miles (this might bite me in the behind if I try to sell later on :O), and my spoiler activates with the spoiler switch light flashing. The car still drives, I now just have to gauge my speed by gear / tachometer. Found that the F1 fuse was blown, and kept blowing when putting in a new fuse.

I tried re-soldering a few of the terminals on the RCM (from this post), and hoped it would fix it. It did for about 15-20 minutes until another pothole on the interstate. Could have been a bad solder job, but thinking it might be something else, a short somewhere or loose wire perhaps.

Codes from the ODB reader show P0410 (pending) and P0600 (pending and confirmed). Not exactly sure what pending / confirmed means, that is what the reader output.

Any suggestions on next steps?