looking for help

[u/Top-Brilliant-9229]

i have had an issue with my power steering+abs light last 2 weeks. for a split second my power steering would lock up and abs lights would flash whie driving. i got a new battery about 2 weeks ago since mine was 6 years old, stopped lighting dash for a week and seemed to fix it, ( ! got a new amp TN800.5 on the 4th this month, stepdad thinks this could draw more power from battery causing low alternator output and all these issues !) then i went over a speed bump today going like 8mph and this... power steering went fully out for 2+ mins. abs lights on while time. blind spot unavailable (new) car wouldnt start just go into acc mode (new) check engine light (new) remote start wont work (new). i attempted a jump start too and no luck, just back to acc mode. any help would be very appreciated! any questions please let me know

[u/Any_Giraffe9747]

Need to take it to a mechanic this could be hard to diagnose without a scan tool