adding a digital speedometer
 

I have a 86 N/A and i want to add a digital speedometer to my car has anyone done this? if so where did they get it?

I was looking around and i found these but i don't know if they would work or not

http://www.dakotadigital.com/index.c...rod/prd292.htm
http://www.dakotadigital.com/index.c...rod/prd109.htm