I know theres a huge thread on stereos in the 100 section. Anyone do any stereo upgrades in their 100? I ordered new speakers/sub, seems straight forward of a swap. But I think I want to upgrade the amp. Im not ready to drop big $$ on a new head unit yet. I just installed a bluetooth adapter into the 6 cd changer port and its working well. Just want the sound clearer. I also feel like now, as the stereo volume goes up, besides there being more distortion, i seem to loose the lows, or the tweeters are just over powering everything else.