I bought an used almera 2004 and it has simmilar to this radio/gps/climate control board onderdelenlijn.nl/upload/parts/100029/5176599/large/0.jpg the problem is that the button 1 and 4 doesnt work at all at buttons 3 and 6 just beeps and If i push them hard enough windows heater turns on. So aI wanted to ask do I need a new head unit or just new board or maybe I just can just take it off and clean it with some WD40 or something. Also the buttons 2 and 5 works fine only one time they were actually stuck but I did unstuck them. But the buttons 1/4 and 3/6 are not stuck but just doesnt do anything. Thanks for answers. All other buttons except for SRC works fine. So I use SRC from wheel controls.