Dittos to all the above. Had been thinking of installing turn signals on our '30 coupe for years and this post pushed me over the edge. Can't imagine how many miles I've driven behind Model A's with their turn signals still going after a turn so went with the S&M unit with the auto cancel, not that I would ever be guilty of that!
With the switch hidden behind left side of dash and using the cowl lights for the front you can't tell the car has turn signals without leaning way down and looking at some additional wiring way under the tank. Had one spot on the temp gauge bracket to fit one more LED (the other side has a light for the overdrive engaged) so opted for the one light system to show the turn signal is operating. Using one LED you need to add a diode to each of the two feed wires. Greg at S&M Electro-Tech can coach you through that if you need help.
As mentioned above the beeper is perfect at slow speeds or stopped but not heard at highway speeds. The indicator light lets you know for sure at higher speeds that you did indeed activate the turn signal and that it is still flashing and not timed out. The factory 15 second setting (adjustable if you prefer longer) seems to work perfect for us.
S&M has thought of just about everything in this application. For example if you use the cowl lights for turn signals, the cowl lights still operate as original with the light switch. Only difference is that if you have the cowl lights on and activate the turn signal then the activated side flashes and the other side stays on. The unit has fuses in side the box to protect the electronics. If you happen to blow one of them and render the box inop your original wiring for brakes will still operate. Plus all the items mentioned above.
Really impressed with the design, quality and customer service with this unit. Highly recommend it!
Finally joined the Flasher Club
