Hi was looking for help wiring D3 up to GMCO interface. do you use rca or what ? Any help or suggestions for hooking it all up would be appreciated.

07 vette no onstar has bose. I will be keeping the bose amp.

Use the rca output of the d3 not the speaker output. SHould say it in the instructions for the interface.

the interfaces instructions are very vague, I'm waiting for btb-200 to come and I will be ready to begin. I'm sure I'll have some questions for pro's. thank you so much for your help.

this has been a nightmare so far. I took the car to an audio shop to get a D3 installed along with sirius & bluetooth. Well they tried to get one over on me. Installed all used stuff, demo models and left over crap. Never worked right, no chimes they had wrong interface a real mess. all the wires were hacked off and spliced on the D3. I pulled it all out and shipped it back to them and disputed charges. Now I am going to try and install it myself, I'm pretty good at regular stereos so I hope I can get through this, better yet I will get through this will help from this great forum.