[marblesyrup]

So, I have been through a lot of posts and retrofit sites over the past 4 hours and I have a reasonable idea of what's required but I could do with some clarification.

Which model of combox is compatible with the E70 X5? There are a few on eBay but they all have different model numbers and the model numbers are not listed on the retrofit site pages (probably for obvious reasons)

Anyway, I'm wondering if all E series comboxes would be compatible?

Is a combox on its own enough to stream BT audio from my phone? It would appear so. Although the coding to allow the car to use its apps apparently is another $500 or so which doesn't seem worth it.

Any other pointers I may need?

at almost $1200 for the combox and apps coding - that seems like 50% of the cost of retrofitting NBT which is ludicrous.