how do you replace your SI board batteries? I took my instrument cluster apart last weekend (was it just me or that´s hard to do?) only to find out some gears in the odometer were broken, so that´s why my mileage won´t go up no more. Other than that, my speedo stopped working (it was fine before), RPM needle stays @ 2500 for as long as the engine is running, no matter what (same as before). But now my speedo won´t work (0 all the time) and MPG meter won´t work properly (it was fine before). I need a new cluster anyway...