Need help diagnosing a few things
 

I'm basically restoring my 1997 porsche boxster. I've done a few things but there's a couple things that I'm not sure on.

1 is whenever driving the car, the back end will move to the left or it even happens whenever I go over unevenness in the roads. It happens whenever either wheel goes over a bump. If you have any questions to help figure out what it is before I buy parts then let me know.

The second thing is on the highway, the ABS and the traction control lights come on and the radio doesn't work but whenever I turn the car off and start it up again, the lights turn off.

Best to separate everything out so we can follow along better.

Rear end...get an alignment, or at least get it up on a lift to see what's loose. Many variables here but have to get it on a lift to figure out what is going on.

Traction lights? Didn't know the 97 came with PSM but I could be wrong.

Radio - check the wiring & fuses. Factory or aftermarket?

Alright it needs tires anyway so I'll get the alignment done whenever I do that.

Yeah there is a traction control button to turn it on or off. Its not PSM it'd a different thing but it was an option for 97-00

And yes it is the factory radio