i have a 2011 HHR LT, and unfortunately, i didn't purchase my Sony XAV-AX100 head unit through Crutchfield; the recommended components without the discount cost close to $150, so i'm wondering if anyone at least has a cheaper alternative to the Crux CS-GM11B interface/module? i have the Pioneer stereo system, no steering wheel controls and no On-Star. a cheaper "dash kit" including everything would be even better.

 

also found this:


does anyone know of anything more affordable?

 

It is a generic circuit board. Give eBay a chance. GMLAN interface.

 

Like this one,

https://rover.ebay.com/rover/0/0/0?m...2F133004904983

 

I have a Sony WX-GS920BH and only had to purchase Metra 40-CR10 Antenna Adapter ($5.52 Amazon) and Metra LC-GMRC-LAN-03 ($38.35 Amazon) This is the harness that works if you don't have XM Radio or OnStar. Also retains RAP and door chimes.

 

thanks y'all; "LAN" was the search term i was missing. much appreciated.