Well there is a product that solves the door chime issue with aftermarket head units in GM vehicles.
http://www.crutchfield.com/S-opNsQmf...51&I=120GMOS04

although i am not sure about the steering wheel controls but it does talk about onstar and i do have some buttons (ok just one but it is there nonetheless) on my steering wheel that has to do with onstar...

EDIT: Upon looking further into the matter you would not retain any steering wheel control no matter what brand of GM-Class 2 radio interface thingy you bought.

 

Does that Basslink fit snug under the rear seat?

 

Hadn't forgot about ya Flux. I'll tell you today/tomorrow. I don't have it yet. Arrives this afternoon I hope.

 

Yeah thats what I thought and primary reason I'm not upgrading the head unit. It will probalby never sound as good as a quality aftermarket but should sound okay for my older ears. Anything over where it is at would be an improvement. It sucks.

 

Fits just fine. Cannot see it with the rear seat down. This is turned with the amp fins toward the back of the truck. If the amp fins are turned to face one of the doors the feet mess with the floor mats I'll probably turn it this way and trim the mat. Still can't see it with the seat down. It does touch the bottom of the seat at the higher center. Shouldn't matter and could trim down the feet if needed.

Can't wait to get all this in. Gotta get to work.

 

Sweet...thanks Ky & let me know how it sounds. Also, where did buy it from?

 

Bought it new off E-bay. Came out of TX.