Updating/Replacing CCC Unit

[sleepybear]

I am sure this has been covered, but after struggling to get good search results, wanted to check to see if I could get some solid info.

This all started when I took my 2008 X5 4.8i to a local BMW specialist as (among a few other things) the trunk hatch was having issues completely closing (would get to the point of soft close, and bounce open). They suggested I do an update on the FRM unit, which eventually bricked it, and then had to be replaced with a new one. When I picked the vehicle back up a week later, the rear view camera no longer worked, and the AUX cord was no longer a selectable option through iDrive system. On top of that, the trunk still wouldn't close consistently. After I brought it back, they said they found a piece of plastic that was interfering with the close, and haven't been able to replicate that issue since. The bad news is that after the reprogramming/new FRM, I had more issues than when I brought it in originally.

They are now saying I will have to replace the whole CCC unit, which is obviously very expensive and in the end will still look old and outdated. I am thinking about going with an aftermarket option such as the iNav from 4x4ShopCA or BAVE70A-1025 by AVIN, but want to make sure I am getting the right unit. I did also look at the bimmerretrofit option, but after seeing the price of that, don't think I can justify close to $2k at this point.

My only real goals are to maintain use of the iDrive knob/steering wheel buttons, factory back-up camera/parking sensors, and have bluetooth audio/apple carplay. I don't need wifi or 4g connection, as long as bluetooth works for audio. I spoke w/ customer service at 4x4shop, and they assured me it would be totally plug and play.

Does anyone have experience with either unit/company, and can confirm it is truly plug and play and will still have the factory back-up camera etc.