Hello I have a 2006, is350 with 145081 miles and it has the strangest issue I've seen, so when I bought this car it had a aftermarket screen, and the guy who installed it didn't do the best job, the ac controls were buggy screen didn't work half the time, etc... but he still had the original screen, early February I decided to swap it back in, swap went just fine but I believe I've messes something up, before I continue, yes I unhooked the battery properly and and pluged every cable in. So as I start up it didn't even crank, this just ended up being a dead old batter woth dirty terminals, now the acually issue, I have 3 lights on my dash P/S, BRAKE, ABS I don't know how changing a radio effects these things but nevertheless I tried to see what the issue was. I bought a new screen of of ebay because originally the screen did work...for 2 days... it was still minorly broken though the touch was broken because the ribbon cable, I knew this was a issue but honestly I didn't care I had working ac/heat controls then literally one day as I'm driving it shuts off totally dead as long as my ac controls, the only thing that works is the hazard lights and the security light. The ebay oem screen I bought? Didn't even work. Then I ended up spending $150 bucks on a code scanner just gave me the code "ABS HAS LOST COMMUNICATION" I don't know how abs makes your radio not work. Also a bunch of minor annoyances are NON of my windows work. I know with lexus the windows have to be recalibrated but non of them work not from the master switch or there individual switches, another annoyance is power steering, basically doesn't exist when stoped nearly impossible to turn the wheel, it does kick in with a little speed. Also etc/pwr/snow mode do not work at all nothing comes up on the dash or anything same with trac on/off, my mirrors don't roll down like there usually did before I put the radio back in. Some other small things is my windshield washer doesn't work...specially the spray the only option that works is the windshield wiper when i push it down and it goes the fastest it goes. Also the headlights don't turn off...drained my battery once I have to manually turn them off every time. And the biggest thing? My SPEEDOMETER doesn't work which also means my odometer works which means I've tacked on probably 2000 miles without change, please help genuinely im losing hope last week I just learned I have some enging oil leak from the front. And no clearing the codes doest make it go away, the dash lights are on before the check even finishes. Any advice with help im already 600$ deep and nothings changed please please help.