3 in 1 Adapter with new rom?

[Squeeky]

I've read several different post that list issues with stereo adapters after the rom update. Now that I spend more time on my mogul then with my wife , jk! I want to be able to play audio through my car. I am leaning towards the 3in1 adapter that have now surfaced on ebay and moguldept. http://cgi.ebay.com/HTC-3in1-Stereo-...QQcmdZViewItem

This would give me that ability to plug in a tape deck adapter while still charging the unit. I also like this style as my car mounts openning is only really big enough for one plug. I just wanted to check if anyone is using before I purchase.

Thanks
Squeeky