I put a cheap one in my wife's car, it sucked, ended up having another one put in. I am good with electronics (Former CT/X-Ray project manager/ Biotech specialist) and those cheap ones just have a bad design to make them inexpensive to produce. Some wont work well no mater how good you are with the install..
85 ATC110 - The Greatest ATC of all time - (My First - new in 85)
83 FL250 - Odyssey w/420cc - SOLD
82 185s -10.25:1 piston, Full 200x upper, Goki Electric start - SOLD
84 200x - Auto-X - Weisco Hi-comp, Cam'd, Bassani'd, Westcoast swinger, -SOLD
82 200E Big Red -SOLD
85 ATC250ES Big Red - Snow Plow !