Install Aftermarket Radio Saturn Ion 

hey do u need that ground that connects to the stock radio? if so how do u hook it up to the aftermarket one? or do u not have to?

what do you do with the chasis ground if your radio doesn't have the male connector?

Good video I'm going to install my aftermarket head unit in a 2007 saturn ion but running into kits stating need to buy Sound System Interface Kit the little box that controls chines and onstar if you have it an crap did you need to have that ? What year saturn is this being installed in ? I just would rather nor buy jt if j don't need it (interface alone over $100 not including antenna adapter dash kit harness etc) I don't even have onstar but some sites say I still need the interface some sites say no idk , thedifference is $50 to $200 so it's big deal for me.