BIG DISAPPOINTMENT!!! I installed an ADDA 30x30x6mm 100mA fan directly under the heatsink and fused it to the remote wire. Sorry, no pics to prove that I actually installed a fan. I performed the fan installation Monday and benched the unit for about 2 hours with no pickup problems. Installed the unit into my car later that night and expected a good musical commute Tuesday morning. 45 minutes into the commute, it acted up again!!! A 15 minute increase in playing time, WOW!!! This unit performs flawlessly on the bench BUT suffers from being installed in an automotive environment. I have NEVER experienced this kind of problem with my previous HUs before! I guess it has a bad chip and I will be without it for 4-8 weeks. I will post another update when I receive my repaired unit. 4-8 weeks of listening to my OEM, oh well.