Just recently Changed front inner differential seals and locker actuator plug, and added a new stereo head unit. My locker lights don't light up on dash nor do they engage by hitting switch. They do show the green back lighting. My esp,hazard,power outlet switch below ac controls don't light up now do they work. If I put jeep in 4lo esp light comes on. 4WD lights come on as well. Ive checked every fuse and still no luck, any Ideas? thanks.