Motorola unit under rear seat?

[1998Jimmy]

I opened up the rear seats in my 2003 Envoy SLE to fold them down and found a Motorola unit under the right rear seat, next to the jack. What the heck is it?

I knew the fuse box was under the left rear seat, but I have no idea what this thing is. It's under a plastic housing with vents.

[cbwilsha]

It is the Onstar unit.

C.B.

[1998Jimmy]

Thanks. I should have figured that out.