Blower motor wires ?

[boneheadsGeTeX]

This motor from 70 gtx aftermarket A/C unit. What I need to know is where's the ground ?
6 wires total
Plug- 1 red 1 orang 1 yellow are L. m. H speeds
Blue and yellow single wire tied together
Red single wire went to vacuum valves.
Where's the ground ?

 

[69b3rt]

I have seen a lot of fan motors where the case is ground. If motor is mounted in a plastic housing, the fan motor case will need a ground strap to body of car.

 

[boneheadsGeTeX]

Maybe motor is bad. Iv grounded case and tried can't get it to work