dont know about the steering wheel but with the rear window id remove the door card & check its connected. if it is dissconect it & try a direct live feed from a battery charger or something. if it works theres a wiring problem somewhere (there is several connections in the window loom) if it doesnt work then the motors fooked. as for the cd player keep searching on ebay. they do often crop up & can normally be got for £20- £40. cool to keep it original