Does anyone know how to open a greddy mech boost gauge? I just got one for $50 and it rattles inside. The gauge is accurate to a T and the light work. The rattling kinda sorta bothers me, plus Id like to find out how to replace the bulb. I dont really want to just start prying before finding out if any of you guys have opened one.
Thanks if yo can help.
sky

 

looks like nothin' to do but pop the f'er open