Yes Pal ;

That's the easiest way to go , Grote part # 44210 will get you a nifty reverse lamp switch , you unscrew the speedo cable , screw this switch into
the speedo drive then re-connect the speedo cable

So.Cal. suppliers of Grote products include NAPA ,
The Lighthouse , Lu's Lighthouse , Parts Pacific , PTO Sales and Warren Distributing among others .

Have fun ! .

-Nate
There is no problem so difficult it cannot be overcome by generous application of brute force & ignorance