Have any of you opened an ECU on a 325is? My 88 325is is a tad different than the ECU on my old 88M3. The M3 had flat tabs that you push down to release the upper board from the lower. The 325is has little round tabs that don't want to budge! Can anyone enlighten me on how to break the seal so I can get inside to the chip? I gently pryed on it for two hours last evening and didn't get anything done:(