The capacitors were added to reduce electrical noise in the system for the radio. There were several added around the car. I am not sure of all of them but one was added by the throttle switch and another by the ignition coil. If your radio is working without snaps, crackles, or whine then you are OK. The plug on the firewall with the 2 wires, red and black is for the back-up lights on the manual. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "drdhdmd" <doctorDHD@xxxx> wrote: > On my car there is a 1uF capacitor on the firewall that is not > connected to anything..... Any ideas on what this capacitor is for, To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/