Quote:
Originally Posted by Overboost
I am using the AVIN Avant-4 with pretty good results. As with all Chinese aftermarket head units they lack proper customer support but it is there via email and I have been fairly satisfied. I have a 2004 with DSP and this unit is a direct plug and play unit. If you already have factory navigation, it drops right in. If you have the Business CD with Mid there is a little trimming but not enough to change it forever if you ever want to go back to stock.
You need the iBus adapter for the DSP to function and it is included when you order for DSP. The iBus adapter also allows for resetting the factory OBC values.
Price has dropped again to $399 for the base model.
https://avinusa.com/avant-4-for-bmw-...on-system.html

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Question on the Avin radio. I have the Nav and CD radio loaded on my unit. If I dont care if it doesnt work anymore do I need to buy the Nav cables? My unit does not have DSP. Anything else I need to look out for? Thanks.