Ive posted this before and Ive researched the forum but havent found anyone mentioning it so I will try here. There is a "ticking noise" (insert bomb jokes here) coming from my second row seats. Ive isolated it to the middle seat. The sound only comes in whenever I go over a bump on the road etc. I can sometimes reproduce the sound by grabbing onto the seatbelt housing of the middle seat and rocking it back and forth. The sound is coming from the base and sounds like plastic on plastic ticking. I look and look but cant seem to pinpoint the source. Anyone else have experienced this problem?