Answer to: Dropped my speaker and now the sub is looseWhen you find this loose part labeled "100", just put it back on the motherboard, press it with your finger and check the sound is coming out. If it does, you just have to insert a hold to press it permanently. A foam part will do great. You can insert it with small pliers or with tweezers, pressing it to insert and letting it expand again. Easy peasy, lemon squeezy ! I have a nice picture but could not attach it. Don't let it fall again Olivier (my friend - we just had a DIY session together). Same for you Michaela !