My parent's 2001 Mazda 626 has had 3 of the 4 power door locks replaced so far, and smart money says #4 is coming soon. They just die eventually, but the car does have over 150K on it.

 

My minor annoyances....
1) clutch chatter on cold mornings
2) Rattle coming from headliner
3) occaisional rattle from cluster surround & steering column
4) Slight vibration through floorboards
5) Paint chips easily on front bumper
6) Leather seats... now where are the heaters? (This MATTERS on a cold Detroit morning)
7) Can't fit large drink in right side cup holder while using outlet to charge cell phone
8) Winshield washer bottle a little smallish (my Neon held an ENTIRE BOTTLE of fluid)
9) Stock stereo lacks low range punch in a P5 (all door speakers... go figure)
And my biggest annoyance is...
10) Not nearly as much support in the aftermarket as other cars (but this is getting better)

 

i dont know if its the fact that i have rerun speaker wires through the door harness but sometimes my speaker puts out a little beep/buzz when i lock the door. but its only the drivers side. maybe even the stock wires are picking up a little signal from the lock wire.

 

Javanc,
Thanks for that illuminating reply. I completely ignored the possibility that the electric signals may be being picked up by the audio. I have stock audio player with aftermarket speakers and a powered woofer that's connected directly to the battery through the firewall. I'll look into that sound. It does come from the drivers side.