Strange Electrical issue help

I am having an issue with my 2007 F430 F1 in which I am pretty much stuck, and hoping that someone else has experienced and remedied this issue. I'd greatly appreciate any insight in hopes to fix this before I just send it off to the dealer.

The issue I am experiencing is when I get in the car and power it to on, 1 out of 10 times, I'll get normal higher pitch ring, followed by the lower pitched error and in this order the F1 light, Brake, and ABS lights will illuminate. The car will crank, but wont turn over due to these errors and I'll just turn it off and re-cycle the key and it will start fine.

I can also have this issue occur when I've started the car, and push the brake. All tail lamps illuminate, and after pushing the a few times, the same warning lights will come on and the radio, fan blower, and tail lamps will all lose power. Almost as if there is a bad relay or ground somewhere. (It seems like the tail lamps, blower motor, and F1 pump are all on the same circuit.)

Thus far I have changed the following:

Battery (optima red), Brake pedal switch, brake lamp fuse,

As for electrical mods, the car has only Scuding Swiss parts LED tail lamps, full line led brake lamp, Smart F1 relay, as well as an Alpine head unit.

My last step will be to swap the tail lamps back to stock, and see if that remedies the issue before taking it to the dealer service. Hopefully someone here has gone through and overcame the same issue! Thank you all!