Yesterday I repaired a loose wire on the Motorola alt in the orange car. It now charges a steady 14 volts instead of 12 1/2 -13 volts, but the light is still on when the engine is running. I am going to install a cheap volt meter for now. I am going by my friends shop today and see when he wants to test fit the Delco with the Motorola fan on the yellow car. The yellow car has the A/C compressor removed so there is more room to see and work. If there are no belt or clearance problems I will have it installed in the orange car later this week. I don't know if I will wire up the stock alt light when I install the Delco and just use the Volt meter until I install the autometer gauges in the stock under the package tray gauge pod. Some people believe the problem is in the alt light wiring, me personally I think I just got another Motorola with a bad diode AGAIN!!! "Doc"