Stock base radio details 2015 Silverado

[xltbob501]

So, I'm trying to figure out what I can do on the cheap with my 2015 Silverado base radio. I have a Sirius Stiletto2 cradle I want to mount, but I need either to plug an adapter in line with the fm radio antenna or an auxiliary audio jack at the dash. Any ideas?

 

I've got the bench seat, so my auxiliary port is in the fold down storage area.

 

I pulled apart the dash and was interested in what the other connectors were. I see a female mini USB port and what looks like a digital antenna port. Is there a thread with details of what's in the dash?

 

Thanks

 

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