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Have you got a link to the one you bought? 

https://www.aliexpress.com/item/1005002214866223.html

You have to message the seller to add the canbus. Its an additional purchase. Ask them to waive the shipping cost on the canbus and include it in the same package as the head unit. Make sure you state that you require the "B" cable. 

I purchased the 4gb ram model with DSP and QLED 

I bought this but they couldn't get it working with the bose system in my car, gutted as it looked really good. 

Sorry about that. Mine doesnt have the bose system I have a aftermarket Rockford Fosgate system installed. The rest of the factory settings work fine. Have you tried playing around with the canbus settings?

Hello,
Thank you for the information.
I'm thinking of maybe doing the same.
Was it easy to replace the head unit when you had the canbus box? and how did you remove the old R-Link head unit?
Thank you very much!