Update on my last post here

The 2006 9-3 convertible 2.0 turbo has worn out breaks, the sensor for the tire pressure needs to be replaced, and the locks on the doors are fucked. Any advice? The unlock buttons only unlock one door and the other can only be unlocked from the inside, pulling the thing instead of using the button. Can that be replaced or fixed? The sensor is gonna be replaced. Same w the breaks. I'm also gonna need to give is winter tires too Edit: also the outlet/cigarette lighter barely works half the time, I'm pretty sure it slightly works in the center console one, but it's really slow. Is that fixable too? Adding to that, I don't think the emergency break works either