I bought a 28" x 20" color wiring diagram a few year back. Its under glass on my office desktop. Its is very handy. In a message dated 6/9/2025 3:42:36 PM Central Daylight Time, richbhoppe@gmail.com writes: I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator". I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe_______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. I bought a 28" x 20" color wiring diagram a few year back. Its under glass on my office desktop. Its is very handy. In a message dated 6/9/2025 3:42:36 PM Central Daylight Time, richbhoppe@gmail.com writes: I am working on a 1973 pantera. On the wiring diagram right of the steering column it says an orange wire and yellow/black wire that goes to 'controls illumination regulator" I think this is for the rheostat switch. Then left of the steering column there is another orange wire and yellow/black wire that says to 'instrument illumination regulator". I don't understand where this second connection goes to and why. Thanks for you help. Rich Hoppe _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- [1]detomaso@server.detomasolist.com To unsubscribe send an email to [2]detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. References 1. mailto:detomaso@server.detomasolist.com 2. mailto:detomaso-leave@server.detomasolist.com