My work truck, 2019 f350 xlt has mykey limiting radio to 45%. Anyway to get around that? Dont need to hack the speed or advancetrak, just the radio

The problem is the radio change wasn't done properly. The first indication of that was when you said

"they changed the factory radio it and when you turn off the radio the speedometer works"

Other factory things commonly run through the radio even though you may not expect they would. I don't know what your wiring is like now. Did they hack the factory plug off? If not, it should be relatively easy to put the wiring back like it was. You could then either get a factory radio for that car cheap. Salvage yard, maybe ebay, maybe a friend has one laying around etc. You could seek out a proper wiring harness made to put an aftermarket radio in. Crutchfield is a great place to search for special harnesses.

If the plug has been hacked off and you just have wires hanging, you'll need to figure out what is what. Again, if you go to a Salvage yard (junk yard) you might find a 96 Monte like yours with a factory plug you could hack off and re- wire to your car. I will include a diagram showing that the speed sensor input is part of the radio circuit as well as a link to Crutchfield. I'm trying to give you options so you can pick the one that works best for you.
Find what fits your car Crutchfield

maybe a wheel speed sensor is not working or is off a little that could throw a code. or the reluctor wheel on the brake rotor got damaged somehow. Or maybe in the rear the abs sensor is no good assuming it has 4 wheel abs. What does the trouble code say?

10W30 weight.

Have you checked under the driver steering column? Mine was located here on a white sticker.

There is too much free play on the clutch pedal you need to adjust the clutch.An adjustment need to be done.

sounds like a wiring issue. I'd start by checking the wires around the radio and see if they are chaffed or broken.

Start the car and when truck runs disconnect one of the Battery terminal, if engine quits You need an alternator

There is nothing to reset on the computer. This kind of problem is hard to find. Most likely it is a connector issue, but could be a bad bcm. I would get under the dash and jiggle the relevant wires to see if anything changes while jiggling. If it does, keep jiggling individual wires and locations to isolate the problem to a specific wire or connector. If you think it's a connector, check to make sure the terminals are fully seated in the connector such that the pins are going into the terminals. If none of that works, play around in the fuse box. Take fuses in and out. Swap relays around, etc.

Sounds like an ignition switch problem, maybe even at the key.